proc tty: remove struct tty_operations::read_proc

struct tty_operations::proc_fops took it's place and there is one less
create_proc_read_entry() user now!

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index 854827b..83adcc8 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -144,22 +144,12 @@
 {
 	struct proc_dir_entry *ent;
 		
-	if (!driver->driver_name || driver->proc_entry)
+	if (!driver->driver_name || driver->proc_entry ||
+	    !driver->ops->proc_fops)
 		return;
 
-	if (driver->ops->proc_fops) {
-		ent = proc_create_data(driver->driver_name, 0, proc_tty_driver,
-				       driver->ops->proc_fops, driver);
-		if (!ent)
-			return;
-	} else if (driver->ops->read_proc) {
-		ent = create_proc_entry(driver->driver_name, 0, proc_tty_driver);
-		if (!ent)
-			return;
-		ent->read_proc = driver->ops->read_proc;
-		ent->data = driver;
-	} else
-		return;
+	ent = proc_create_data(driver->driver_name, 0, proc_tty_driver,
+			       driver->ops->proc_fops, driver);
 	driver->proc_entry = ent;
 }