remove eli5 test

since the dataset is defunct

Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6583). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

<details>
<summary>Show benchmarks</summary>

PyArrow==8.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.005024 / 0.011353 (-0.006329) | 0.003172 / 0.011008 (-0.007836) | 0.062934 / 0.038508 (0.024426) | 0.031737 / 0.023109 (0.008628) | 0.249251 / 0.275898 (-0.026647) | 0.273084 / 0.323480 (-0.050396) | 0.002958 / 0.007986 (-0.005027) | 0.002726 / 0.004328 (-0.001603) | 0.048519 / 0.004250 (0.044269) | 0.043608 / 0.037052 (0.006556) | 0.253648 / 0.258489 (-0.004841) | 0.280095 / 0.293841 (-0.013746) | 0.027500 / 0.128546 (-0.101046) | 0.010545 / 0.075646 (-0.065101) | 0.206781 / 0.419271 (-0.212490) | 0.035515 / 0.043533 (-0.008018) | 0.259449 / 0.255139 (0.004310) | 0.271488 / 0.283200 (-0.011712) | 0.019352 / 0.141683 (-0.122331) | 1.152002 / 1.452155 (-0.300153) | 1.190325 / 1.492716 (-0.302391) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.093253 / 0.018006 (0.075247) | 0.302182 / 0.000490 (0.301692) | 0.000216 / 0.000200 (0.000016) | 0.000047 / 0.000054 (-0.000008) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.017889 / 0.037411 (-0.019523) | 0.060292 / 0.014526 (0.045766) | 0.072640 / 0.176557 (-0.103917) | 0.121320 / 0.737135 (-0.615815) | 0.073866 / 0.296338 (-0.222472) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.282910 / 0.215209 (0.067701) | 2.779815 / 2.077655 (0.702160) | 1.537929 / 1.504120 (0.033809) | 1.405990 / 1.541195 (-0.135205) | 1.407911 / 1.468490 (-0.060579) | 0.561551 / 4.584777 (-4.023226) | 2.368053 / 3.745712 (-1.377659) | 2.732608 / 5.269862 (-2.537254) | 1.710274 / 4.565676 (-2.855402) | 0.061925 / 0.424275 (-0.362350) | 0.004975 / 0.007607 (-0.002632) | 0.338843 / 0.226044 (0.112799) | 3.328579 / 2.268929 (1.059650) | 1.865994 / 55.444624 (-53.578631) | 1.603145 / 6.876477 (-5.273332) | 1.615440 / 2.142072 (-0.526633) | 0.635646 / 4.805227 (-4.169581) | 0.116185 / 6.500664 (-6.384479) | 0.041964 / 0.075469 (-0.033505) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.956977 / 1.841788 (-0.884811) | 11.539802 / 8.074308 (3.465494) | 10.048855 / 10.191392 (-0.142537) | 0.128758 / 0.680424 (-0.551666) | 0.013491 / 0.534201 (-0.520710) | 0.287330 / 0.579283 (-0.291953) | 0.262416 / 0.434364 (-0.171947) | 0.327327 / 0.540337 (-0.213011) | 0.418423 / 1.386936 (-0.968513) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.004963 / 0.011353 (-0.006390) | 0.003335 / 0.011008 (-0.007673) | 0.052082 / 0.038508 (0.013574) | 0.029302 / 0.023109 (0.006192) | 0.284986 / 0.275898 (0.009088) | 0.304082 / 0.323480 (-0.019398) | 0.004065 / 0.007986 (-0.003921) | 0.002643 / 0.004328 (-0.001685) | 0.049504 / 0.004250 (0.045253) | 0.044514 / 0.037052 (0.007461) | 0.287064 / 0.258489 (0.028575) | 0.312921 / 0.293841 (0.019080) | 0.029195 / 0.128546 (-0.099351) | 0.010471 / 0.075646 (-0.065175) | 0.057620 / 0.419271 (-0.361651) | 0.050221 / 0.043533 (0.006689) | 0.285392 / 0.255139 (0.030253) | 0.302111 / 0.283200 (0.018912) | 0.018690 / 0.141683 (-0.122993) | 1.165637 / 1.452155 (-0.286518) | 1.203757 / 1.492716 (-0.288959) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.095035 / 0.018006 (0.077028) | 0.304447 / 0.000490 (0.303957) | 0.000231 / 0.000200 (0.000031) | 0.000051 / 0.000054 (-0.000003) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.022345 / 0.037411 (-0.015066) | 0.077195 / 0.014526 (0.062669) | 0.089564 / 0.176557 (-0.086992) | 0.129248 / 0.737135 (-0.607887) | 0.091974 / 0.296338 (-0.204365) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.300641 / 0.215209 (0.085432) | 2.936669 / 2.077655 (0.859014) | 1.649100 / 1.504120 (0.144980) | 1.510693 / 1.541195 (-0.030502) | 1.517011 / 1.468490 (0.048521) | 0.572511 / 4.584777 (-4.012266) | 2.442704 / 3.745712 (-1.303009) | 2.833089 / 5.269862 (-2.436772) | 1.762668 / 4.565676 (-2.803008) | 0.063754 / 0.424275 (-0.360521) | 0.005034 / 0.007607 (-0.002573) | 0.401631 / 0.226044 (0.175586) | 3.418986 / 2.268929 (1.150057) | 1.989639 / 55.444624 (-53.454986) | 1.695776 / 6.876477 (-5.180701) | 1.712822 / 2.142072 (-0.429250) | 0.654029 / 4.805227 (-4.151198) | 0.117624 / 6.500664 (-6.383040) | 0.041058 / 0.075469 (-0.034411) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.986008 / 1.841788 (-0.855779) | 12.146838 / 8.074308 (4.072530) | 11.105900 / 10.191392 (0.914508) | 0.139938 / 0.680424 (-0.540486) | 0.015117 / 0.534201 (-0.519084) | 0.286151 / 0.579283 (-0.293132) | 0.272960 / 0.434364 (-0.161404) | 0.323370 / 0.540337 (-0.216967) | 0.427379 / 1.386936 (-0.959557) |

</details>
</details>

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