common/: 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/common/cmd_jffs2.c b/common/cmd_jffs2.c
index 777607a..513a226 100644
--- a/common/cmd_jffs2.c
+++ b/common/cmd_jffs2.c
@@ -2192,4 +2192,4 @@
 
 /***************************************************/
 
-#endif /* CFG_CMD_JFFS2 */
+#endif