cmd/gpt: avoid NULL check before free()

free() checks if its argument is NULL. Do not duplicate this in the calling
code.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>

cmd/gpt.c

@@ -772,11 +772,9 @@ static int do_rename_gpt_parts(struct blk_desc *dev_desc, char *subcomm,
  out:
 	del_gpt_info();
 #ifdef CONFIG_RANDOM_UUID
-	if (str_disk_guid)
-		free(str_disk_guid);
+	free(str_disk_guid);
 #endif
-	if (new_partitions)
-		free(new_partitions);
+	free(new_partitions);
 	free(partitions_list);
 	return ret;
 }