staging/skein: move all threefish block functions to one file

move all threefish block functions to one file, remove unneeded include
Signed-off-by: Jake Edge <jake@lwn.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/skein/Makefile

@@ -5,7 +5,5 @@ obj-$(CONFIG_CRYPTO_SKEIN) +=   skein.o \
 				skein_api.o \
 				skein_block.o
 
-obj-$(CONFIG_CRYPTO_THREEFISH) += threefish_1024_block.o \
-				  threefish_256_block.o \
-				  threefish_512_block.o \
+obj-$(CONFIG_CRYPTO_THREEFISH) += threefish_block.o \
 				  threefish_api.o