docsrc: fix procfs example

Add MODULE_LICENSE() to DocBook/procfs_example.c since modpost complained
about a missing license there.

Remove tty procfs removal since the creation was deleted long ago
(http://git.kernel.org/?p=linux/kernel/git/tglx/history.git;a=commitdiff;h=5ad9cb65e9b15e5b83e2dd1c10a4bcaccc4ec644).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: <J.A.K.Mouw@its.tudelft.nl>
Cc: Sam Ravnborg <sam@ravnborg.org>
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/Documentation/DocBook/procfs_example.c b/Documentation/DocBook/procfs_example.c
index 7064084..2f3de0f 100644
--- a/Documentation/DocBook/procfs_example.c
+++ b/Documentation/DocBook/procfs_example.c
@@ -189,8 +189,6 @@
 	return 0;
 
 no_symlink:
-	remove_proc_entry("tty", example_dir);
-no_tty:
 	remove_proc_entry("bar", example_dir);
 no_bar:
 	remove_proc_entry("foo", example_dir);
@@ -206,7 +204,6 @@
 static void __exit cleanup_procfs_example(void)
 {
 	remove_proc_entry("jiffies_too", example_dir);
-	remove_proc_entry("tty", example_dir);
 	remove_proc_entry("bar", example_dir);
 	remove_proc_entry("foo", example_dir);
 	remove_proc_entry("jiffies", example_dir);
@@ -222,3 +219,4 @@
 
 MODULE_AUTHOR("Erik Mouw");
 MODULE_DESCRIPTION("procfs examples");
+MODULE_LICENSE("GPL");