Revert "LZ4: compression/decompression signedness mismatch (v2)"

This reverts commit ce3ee5eb8ecd7699939e8b6f0a2efcf10904f903.
Revert "lib/lz4/lz4_compress: fix macro usage error"

This reverts commit dff2e4f4616e65cd549e81c57efa513d2a11483a.
Revert "crypto: Add lz4 Cryptographic API"

This reverts commit fc3b03e6e0be6562a7ed87973082c08690b19108.
Revert "lib: Add lz4 compressor module"

This reverts commit 11cb1e50443e161fcf6295eb338a9fc246a45b0b.
Revert "arm: Add support for LZ4-compressed kernel"

This reverts commit 0252f5c1db7076ca90639f7c2d06eaf4266f445c.
Revert set of lz4 compression changes

Revert "lib: Add support for LZ4-compressed kernel"

This reverts commit 8cb1ad0b18e913230ceeeccfed2e75a16d33a8c5.

Revert "decompressor: Add LZ4 decompressor module"

This reverts commit 6a59ca797865db5b9c38cef817b7be6001b6731a.