Remove tests from expectations list, as it now passes on SwiftShader for
ES2 and ES3.

Bug: angleproject:4401
Change-Id: If05b16e40632154a0ba2c22f1c3bf29e12113389
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2720259
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Cody Northrop <cnorthrop@google.com>