Remove stale hardware_accelerated expectations

Removes expectations for the hardware_accelerated_feature suite that
have been determined to be stale. This only touches expectations that
have passed 100% of the time on all builders.

Bug: 254724, 1155766
Change-Id: I99f8dff856308e072114e3d4d416f99faa48dc8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2592327Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Auto-Submit: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837902}

content/test/gpu/gpu_tests/test_expectations/hardware_accelerated_feature_expectations.txt

@@ -56,6 +56,3 @@
 # results: [ Failure RetryOnFailure Skip ]
 # END TAG HEADER
 
-# Accelerated 2D canvas is not available on Linux due to driver instability
-crbug.com/254724 [ linux ] HardwareAcceleratedFeature_canvas_accelerated [ Failure ]
-