EGLContextSharingTest.DeleteReaderOfSharedTexture/ES2_Vulkan

Passes with the new command graph linearization.

Bug: angleproject:4130
Change-Id: Ic7233696d2c06303ddf46947610b793a1a9e8a65
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2063041Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>