Drop CONFIG_CMD_DOC

This is not used in U-Boot, and the only usage calls a non-existent
function. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>

board/mpl/common/common_util.c

@@ -622,15 +622,6 @@ int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return cmd_usage(cmdtp);
 }
 
-
-#if defined(CONFIG_CMD_DOC)
-void doc_init (void)
-{
-  doc_probe(MULTI_PURPOSE_SOCKET_ADDR);
-}
-#endif
-
-
 #ifdef CONFIG_VIDEO
 /******************************************************
  * Routines to display the Board information

board/mpl/common/common_util.h

@@ -23,8 +23,5 @@ int get_boot_mode(void);
 void setup_cs_reloc(void);
 
 void check_env(void);
-#if defined(CONFIG_CMD_DOC)
-void doc_init (void);
-#endif
 
 #endif /* _COMMON_UTIL_H_ */