Bug 1031496 - Enable robocop testPictureLinkContextMenu on Android 4.3; r=me

--HG--
extra : rebase_source : f69072ea4cd3753d744743534cb756973917553c

mobile/android/tests/browser/robocop/robocop.ini

@@ -57,8 +57,6 @@ skip-if = android_version == "10"
 [src/org/mozilla/gecko/tests/testPasswordProvider.java]
 # [src/org/mozilla/gecko/tests/testPermissions.java] # see bug 757475
 [src/org/mozilla/gecko/tests/testPictureLinkContextMenu.java]
-# disabled on 4.3, bug 1031496
-skip-if = android_version == "18"
 [src/org/mozilla/gecko/tests/testPrefsObserver.java]
 [src/org/mozilla/gecko/tests/testPrivateBrowsing.java]
 [src/org/mozilla/gecko/tests/testPromptGridInput.java]