initramfs: remove redundant dependency on BLK_DEV_INITRD

init/Kconfig includes usr/Kconfig inside the "if BLK_DEV_INITRD" ...
"endif" block:

    if BLK_DEV_INITRD

    source "usr/Kconfig"

    endif

Hence, all the defines in usr/Kconfig depend on BLK_DEV_INITRD.

Remove the redundant "depends on BLK_DEV_INITRD".
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Greg Thelen <gthelen@google.com>

usr/Kconfig

@@ -54,7 +54,6 @@ config INITRAMFS_ROOT_GID
 
 config RD_GZIP
 	bool "Support initial ramdisk/ramfs compressed using gzip"
-	depends on BLK_DEV_INITRD
 	default y
 	select DECOMPRESS_GZIP
 	help
@@ -64,7 +63,6 @@ config RD_GZIP
 config RD_BZIP2
 	bool "Support initial ramdisk/ramfs compressed using bzip2"
 	default y
-	depends on BLK_DEV_INITRD
 	select DECOMPRESS_BZIP2
 	help
 	  Support loading of a bzip2 encoded initial ramdisk or cpio buffer
@@ -73,7 +71,6 @@ config RD_BZIP2
 config RD_LZMA
 	bool "Support initial ramdisk/ramfs compressed using LZMA"
 	default y
-	depends on BLK_DEV_INITRD
 	select DECOMPRESS_LZMA
 	help
 	  Support loading of a LZMA encoded initial ramdisk or cpio buffer
@@ -81,7 +78,6 @@ config RD_LZMA
 
 config RD_XZ
 	bool "Support initial ramdisk/ramfs compressed using XZ"
-	depends on BLK_DEV_INITRD
 	default y
 	select DECOMPRESS_XZ
 	help
@@ -91,7 +87,6 @@ config RD_XZ
 config RD_LZO
 	bool "Support initial ramdisk/ramfs compressed using LZO"
 	default y
-	depends on BLK_DEV_INITRD
 	select DECOMPRESS_LZO
 	help
 	  Support loading of a LZO encoded initial ramdisk or cpio buffer
@@ -100,7 +95,6 @@ config RD_LZO
 config RD_LZ4
 	bool "Support initial ramdisk/ramfs compressed using LZ4"
 	default y
-	depends on BLK_DEV_INITRD
 	select DECOMPRESS_LZ4
 	help
 	  Support loading of a LZ4 encoded initial ramdisk or cpio buffer