Revert "Android ZRAM Optimizations: adapted from Samsung JF series kernel"

This reverts commit 6c2e5d8fbc198830e9038b492c5c460472fb6b6e.
Revert "LMK: Optimize lowmem_shrink."

This reverts commit de284dbefdc8dbefed102ab4fe6af3382afa7ac1.
Revert "zcache-main: switch to lz4 as default"

This reverts commit fdc347b7c062bb811bca24fd83cac12b865ebbbf.
Revert "zcache-main.c: use MACRO define instead of hardcoded default of lzo"

This reverts commit ae129897e822de6505845887d4059c898715da8f.
Revert "zram_drv: switch default compressor to new lz4"

This reverts commit 7e016831acc2c582deb07c9a4b6d9f7c4f9cdf89.
Revert "staging: zram: add per-cpu support to Crypto"

This reverts commit 4365a3cbceee37cd7ada86039d23c2a8664bcc5d.
Revert "staging: zram: fix errors from previous cherry-pick"

This reverts commit b0c8c8fdc1b099516576513c016ba26f4aae24ec.
Revert "staging: zram: add Crypto API support"

This reverts commit d6555d34311f7a6d782c9253b699658b65c9b1a9.
Revert "LZ4: compression/decompression signedness mismatch (v2)"

This reverts commit db7f493d5fcb9c396474bae72a9899917d671d88.
Revert "lib/lz4/lz4_compress: fix macro usage error"

This reverts commit 5dbfbe319a3fe245d5dc747cf9e5bd0dc7091184.
Revert "crypto: Add lz4 Cryptographic API"

This reverts commit c8b20d31bfeecb40cfe7bc93ad647c437a731c3e.
Revert "lib: Add lz4 compressor module"

This reverts commit cde09991958887f8858f2c1903b250d71a78d065.
Revert "arm: Add support for LZ4-compressed kernel"

This reverts commit 34fa20a5137e54ec1c5212d7ce322ec1e3d824be.
Revert "lib: Add support for LZ4-compressed kernel"

This reverts commit 091b49b6b03fca06d682e3e837eede6b52380c61.
Revert "decompressor: Add LZ4 decompressor module"

This reverts commit b69c0c3b983eb5286fd67fb0d1d4791e37e530c8.