Bug 16439: Remove screencasting code

We avoid including the screencasting code on mobile (it got ripped out
for desktop in bug 1393582) by simply excluding the related JS modules
from Tor Browser.

toolkit/modules/moz.build

@@ -259,10 +259,11 @@ if 'Android' != CONFIG['OS_TARGET']:
     ]
 else:
     DEFINES['ANDROID'] = True
-    EXTRA_JS_MODULES += [
-        'secondscreen/RokuApp.jsm',
-        'secondscreen/SimpleServiceDiscovery.jsm',
-    ]
+    if not CONFIG['TOR_BROWSER_VERSION']:
+        EXTRA_JS_MODULES += [
+            'secondscreen/RokuApp.jsm',
+            'secondscreen/SimpleServiceDiscovery.jsm',
+        ]
 
 
 if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'windows':