Remove unused (and incorrect on Android) mTestSuiteName. On Android it ends up being just: _ Bug: angleproject:7299 Change-Id: I3dabcfcbacc3f43338b6fa91ebd9917e43f783ce Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3780587 Commit-Queue: Roman Lavrov <romanl@google.com> Reviewed-by: Yuxin Hu <yuxinhu@google.com>