[mutter] plugin-manager: Clean up an unused define

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

commit fd443ecf2aea2920d76754df7ac12d26c1a96857
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sun Jul 5 20:56:34 2015 -0700

    plugin-manager: Clean up an unused define

 src/compositor/meta-plugin-manager.h |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/src/compositor/meta-plugin-manager.h b/src/compositor/meta-plugin-manager.h
index 3baa0a8..66a22ad 100644
--- a/src/compositor/meta-plugin-manager.h
+++ b/src/compositor/meta-plugin-manager.h
@@ -24,10 +24,7 @@
 
 #include <meta/types.h>
 #include <meta/screen.h>
-
-#define  META_PLUGIN_FROM_MANAGER_
 #include <meta/meta-plugin.h>
-#undef   META_PLUGIN_FROM_MANAGER_
 
 #define META_PLUGIN_MINIMIZE         (1<<0)
 #define META_PLUGIN_MAXIMIZE         (1<<1)