Bug 1487133 Move rpcrt4 out from behind the Maintenance Service if, as mingw disables that r=mhowell

Differential Revision: https://phabricator.services.mozilla.com/D4581

--HG--
extra : moz-landing-system : lando

toolkit/mozapps/update/common/moz.build

@@ -36,6 +36,9 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows':
         'uachelper.cpp',
         'updatehelper.cpp',
     ]
+    OS_LIBS += [
+        'rpcrt4',
+    ]
     if CONFIG['MOZ_MAINTENANCE_SERVICE']:
         SOURCES += [
             'certificatecheck.cpp',
@@ -43,7 +46,6 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows':
         ]
         OS_LIBS += [
             'crypt32',
-            'rpcrt4',
             'wintrust',
         ]