Vulkan Android: Remove workaround to clamp the point size This is to remove the workaround introduced by anglebug.com/2599 since Nexus 5x devices aren't in the farm anymore and the tests pass on Pixel devices. Bug: angleproject:2599 Test: angle_deqp_gles2_tests Test: angle_end2end_tests Change-Id: I14f724494909486a2164ddd734a95b6980429f29 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1559202 Commit-Queue: Tim Van Patten <timvp@google.com> Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>