[pigeon] disable deprecated e2e tests (#860)

packages/pigeon/run_tests.sh

@@ -275,13 +275,15 @@ run_ios_e2e_tests() {
   pushd $PWD
   cd e2e_tests/test_objc
   flutter build ios -t test_driver/e2e_test.dart --simulator
-  cd ios
-  xcodebuild \
-    -workspace Runner.xcworkspace \
-    -scheme RunnerTests \
-    -sdk iphonesimulator \
-    -destination 'platform=iOS Simulator,name=iPhone 8' \
-    test
+  # TODO(gaaclarke): Transition to integration_test. `e2e` has been deprecated
+  # and has stopped working.
+  # cd ios
+  # xcodebuild \
+  #   -workspace Runner.xcworkspace \
+  #   -scheme RunnerTests \
+  #   -sdk iphonesimulator \
+  #   -destination 'platform=iOS Simulator,name=iPhone 8' \
+  #   test
   popd
 }