mtd: core: Remove partid and partname debugfs files

partid and partname debugfs files were used just by SPI NOR, but they were
replaced by sysfs entries. Since these debugfs files are no longer used in
mtd, remove dead code. The directory is kept as it is used by nandsim,
mtdswap and docg3.

Signed-off-by: Tudor Ambarus <[e-mail]>
Reviewed-by: Pratyush Yadav <[e-mail]>
Signed-off-by: Miquel Raynal <[e-mail]>
Link: https://lore.kernel.org/linux-mtd/[e-mail]

drivers/mtd/mtdcore.c

···
 	.release	= mtd_release,
 };
 
-static int mtd_partid_debug_show(struct seq_file *s, void *p)
-{
-	struct mtd_info *mtd = s->private;
-
-	seq_printf(s, "%s\n", mtd->dbg.partid);
-
-	return 0;
-}
-
-DEFINE_SHOW_ATTRIBUTE(mtd_partid_debug);
-
-static int mtd_partname_debug_show(struct seq_file *s, void *p)
-{
-	struct mtd_info *mtd = s->private;
-
-	seq_printf(s, "%s\n", mtd->dbg.partname);
-
-	return 0;
-}
-
-DEFINE_SHOW_ATTRIBUTE(mtd_partname_debug);
-
 static bool mtd_expert_analysis_mode;
 
 #ifdef CONFIG_DEBUG_FS
···
 
 static void mtd_debugfs_populate(struct mtd_info *mtd)
 {
-	struct mtd_info *master = mtd_get_master(mtd);
 	struct device *dev = &mtd->dev;
-	struct dentry *root;
 
 	if (IS_ERR_OR_NULL(dfs_dir_mtd))
 		return;
 
-	root = debugfs_create_dir(dev_name(dev), dfs_dir_mtd);
-	mtd->dbg.dfs_dir = root;
-
-	if (master->dbg.partid)
-		debugfs_create_file("partid", 0400, root, master,
-				    &mtd_partid_debug_fops);
-
-	if (master->dbg.partname)
-		debugfs_create_file("partname", 0400, root, master,
-				    &mtd_partname_debug_fops);
+	mtd->dbg.dfs_dir = debugfs_create_dir(dev_name(dev), dfs_dir_mtd);
 }
 
 #ifndef CONFIG_MMU

include/linux/mtd/mtd.h

···
  */
 struct mtd_debug_info {
 	struct dentry *dfs_dir;
-
-	const char *partname;
-	const char *partid;
 };
 
 /**