Revert "arm: add support for LZ4-compressed kernels This patch integrates the LZ4 decompression code to the arm pre-boot code. And it depends on two patchs below"

This reverts commit e8be86ee534149abfcb4daf29be746acf0e0a20a.
Revert "lib: add support for LZ4-compressed kernels This patch adds support for extracting LZ4-compressed kernel images, as well as LZ4-compressed ramdisk images in the kernel boot process."

This reverts commit 80fb1a9c25642679d84909a2bafd519419f8fbcb.
Revert "decompressors: add lz4 decompressor module"

This reverts commit 5d0cf49bd7e0e07357fa2a29f6f089a5b2f223ba.