Bug 1498721 - Disable Java code coverage on Android r=gbrown

This is due to an incompatability somewhere between JaCoCo and
default interface methods.

Depends on D23016

Differential Revision: https://phabricator.services.mozilla.com/D23017

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

taskcluster/ci/test/test-platforms.yml

@@ -353,10 +353,12 @@ android-em-4.3-arm7-api-16/debug:
     test-sets:
         - android-common-tests
 
-android-em-4.3-arm7-api-16-ccov/debug:
-    build-platform: android-api-16-ccov/debug
-    test-sets:
-        - android-ccov-tests
+# Disable ccov testing on Android due to issues with
+# Java 8 features. Bug 1498721.
+# android-em-4.3-arm7-api-16-ccov/debug:
+#     build-platform: android-api-16-ccov/debug
+#     test-sets:
+#         - android-ccov-tests
 
 android-em-4.3-arm7-api-16/opt:
     build-platform: android-api-16/opt