macosx: remove dead code from extension manager

modules/gui/macosx/ExtensionsManager.h

@@ -56,7 +56,6 @@
 
 - (id)initWithIntf:(intf_thread_t *)_p_intf;
 - (void)buildMenu:(NSMenu *)extMenu;
-- (extensions_manager_t *)getManager;
 
 - (BOOL)loadExtensions;
 - (void)unloadExtensions;

modules/gui/macosx/ExtensionsManager.m

@@ -64,16 +64,6 @@ static ExtensionsManager* instance = nil;
     return self;
 }
 
-/** Get the extensions_manager_t if it is loaded and hold the object */
-- (extensions_manager_t *)getManager
-{
-    if (!p_extensions_manager)
-        return NULL;
-
-    vlc_object_hold(p_extensions_manager);
-    return p_extensions_manager;
-}
-
 - (void)buildMenu:(NSMenu *)extMenu
 {
     assert(extMenu != nil);