Bug 870768 - Disable verify url test. r=gbrown

mobile/android/base/tests/testHistoryTab.java.in

@@ -229,8 +229,9 @@ public class testHistoryTab extends PixelTest {
         if (success == true && mChild != null) {
             mSolo.clickOnView(mChild);
             contentEventExpecter.blockForEvent();
-            mSolo.sleep(500);
-            verifyUrl(url);
+            // Disable this test because its flaky (see bug 870768)
+            // mSolo.sleep(500);
+            // verifyUrl(url);
         } else {
             mAsserter.ok(false, "waiting for history item", "history item available");
         }