Test fix for ChunkStoreTest.BEH_RepeatedlyStoreUsingSameKey.
Removed unrequired files with commented code or that add no new symbols.
Merge pull request #9 from BSMaidSafe/MAID-136_NoNewSymbolsError

Maid 136 no new symbols error
Don't add db_test.cc test_main.cc or test_utils.cc twice.

They will already be picked up by globbing the test/ directory.
Merge pull request #13 from smspillaz/issues/next/12

Don't add db_test.cc test_main.cc or test_utils.cc twice.