Remove unnecessary CompositeAfterPaint expectations

Change-Id: Ibb032646b53070c1d1d03dc853bfaf100c4d6371
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1860691
Auto-Submit: Philip Rogers <pdr@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#706987}

third_party/blink/web_tests/flag-specific/enable-blink-features=CompositeAfterPaint/fast/events/touch/compositor-touch-hit-rects-animation-expected.txt

-This test verifies the hit test regions are updated correctly when composited layer are created and destroyed without triggering layout update during fast path animation.
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-[object HTMLDivElement]: layer(800x600) has hit test rect (200,200 50x50)
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-[object HTMLDivElement]: layer(50x50) has hit test rect (0,0 50x50)
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-[object HTMLDivElement]: layer(800x600) has hit test rect (175,175 100x100)
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-PASS successfullyParsed is true
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-TEST COMPLETE
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