disk/ doc/ lib_*/ and tools/: Remove lingering references to CFG_CMD_* symbols.

Fixed some broken instances of "#ifdef CMD_CFG_IDE" too.
Those always evaluated TRUE, and thus were always compiled
even when IDE really wasn't defined/wanted.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/lib_generic/crc32.c b/lib_generic/crc32.c
index da23336..df0dbca 100644
--- a/lib_generic/crc32.c
+++ b/lib_generic/crc32.c
@@ -9,7 +9,7 @@
  */
 
 #ifndef USE_HOSTCC	/* Shut down "ANSI does not permit..." warnings */
-#include <common.h>	/* to get command definitions like CFG_CMD_JFFS2 */
+#include <common.h>
 #endif
 
 #include "zlib.h"
@@ -196,4 +196,4 @@
     return crc;
 }
 
-#endif	/* CFG_CMD_JFFS2 */
+#endif