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>

disk/part.c

@@ -174,7 +174,7 @@ void dev_print (block_dev_desc_t *dev_desc)
 		puts ("            Capacity: not available\n");
 	}
 }
-#endif	/* CFG_CMD_IDE || CFG_CMD_SCSI || CFG_CMD_USB || CONFIG_MMC */
+#endif
 
 #if (defined(CONFIG_CMD_IDE) || \
      defined(CONFIG_CMD_SCSI) || \