lib_{arm,avr32,blackfin,generic,i386}/: Remove obsolete references to CONFIG_COMMANDS

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/lib_generic/crc32.c b/lib_generic/crc32.c
index 84deba9..da23336 100644
--- a/lib_generic/crc32.c
+++ b/lib_generic/crc32.c
@@ -171,8 +171,8 @@
     return crc ^ 0xffffffffL;
 }
 
-#if ((CONFIG_COMMANDS & CFG_CMD_JFFS2) || defined(CONFIG_CMD_JFFS2)) || \
-	(((CONFIG_COMMANDS & CFG_CMD_NAND) || defined(CONFIG_CMD_NAND)) \
+#if defined(CONFIG_CMD_JFFS2) || \
+	(defined(CONFIG_CMD_NAND) \
 	&& !defined(CFG_NAND_LEGACY))
 
 /* No ones complement version. JFFS2 (and other things ?)