fs/: 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/fs/ext2/dev.c b/fs/ext2/dev.c
index 49a55b9..643a1a8 100644
--- a/fs/ext2/dev.c
+++ b/fs/ext2/dev.c
@@ -123,4 +123,4 @@
 	}
 	return (1);
 }
-#endif /* CFG_CMD_EXT2FS */
+#endif