Remove EGLTest. Consolidate these tests into ANGLETest. Add a new parameter to PlatformParameters that lets us skip normal test setup. This removes the last 'configless' tests from angle_end2end_tests. Bug: angleproject:3393 Change-Id: I87186698ade90f95577534eb8ed1dfd4245f740e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1590467 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>