proc: remove proc_root_driver

Use creation by full path: "driver/foo".

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 596abb6..5e93e9b 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -22,8 +22,6 @@
 
 #include "internal.h"
 
-struct proc_dir_entry *proc_root_driver;
-
 static int proc_test_super(struct super_block *sb, void *data)
 {
 	return sb->s_fs_info == data;
@@ -127,7 +125,7 @@
 	proc_mkdir("sysvipc", NULL);
 #endif
 	proc_mkdir("fs", NULL);
-	proc_root_driver = proc_mkdir("driver", NULL);
+	proc_mkdir("driver", NULL);
 	proc_mkdir("fs/nfsd", NULL); /* somewhere for the nfsd filesystem to be mounted */
 #if defined(CONFIG_SUN_OPENPROMFS) || defined(CONFIG_SUN_OPENPROMFS_MODULE)
 	/* just give it a mountpoint */
@@ -235,4 +233,3 @@
 EXPORT_SYMBOL(proc_create);
 EXPORT_SYMBOL(remove_proc_entry);
 EXPORT_SYMBOL(proc_root);
-EXPORT_SYMBOL(proc_root_driver);