[mutter] plugin-manager: Remove a bogus check

[Jasper St. Pierre <jstpierre src gnome org>]

commit 9596c24f83181076d469813edaefc9db110ca789
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Dec 21 07:06:40 2012 -0500

    plugin-manager: Remove a bogus check
    
    We dereference the plugin_mgr in the initializer above,
    so it's wrong.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=690609

 src/compositor/meta-plugin-manager.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/src/compositor/meta-plugin-manager.c b/src/compositor/meta-plugin-manager.c
index 87b50b3..130a82b 100644
--- a/src/compositor/meta-plugin-manager.c
+++ b/src/compositor/meta-plugin-manager.c
@@ -309,9 +309,6 @@ meta_plugin_manager_xevent_filter (MetaPluginManager *plugin_mgr,
   MetaPlugin *plugin = plugin_mgr->plugin;
   MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
 
-  if (!plugin_mgr)
-    return FALSE;
-
   /* We need to make sure that clutter gets certain events, like
    * ConfigureNotify on the stage window. If there is a plugin that
    * provides an xevent_filter function, then it's the responsibility