Remove Pixel_CSS3DBlueBox suppression on Android.

After many recent changes, including the switch to Skia Gold for
maintaining baselines, this test is passing at least on the Nexus 5,
6, 5X, 6P, and 9 on the chromium.gpu.fyi waterfall. Remove the global
suppression for [android no-skia-renderer]; will re-add specific
suppressions if needed.

Bug: 927107
Change-Id: I370fa474a3bd006ae7dff6cdff92b4bfec85c55b
Tbr: ccameron@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2033565Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: ccameron <ccameron@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#737490}

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

@@ -144,9 +144,6 @@ crbug.com/883500 [ android-chromium no-use-gl no-use-vulkan qualcomm-adreno-(tm)
 # context loss which results in hardware decoder loss.
 crbug.com/580386 [ android ] Pixel_Video_Context_Loss_MP4 [ Skip ]
 
-# Fails on multiple Android devices.
-crbug.com/927107 [ android no-skia-renderer ] Pixel_CSS3DBlueBox [ Failure ]
-
 # Skip on platforms where DXVA vs D3D11 decoder doesn't matter.
 crbug.com/927901 [ linux ] Pixel_Video_MP4_DXVA [ Skip ]
 crbug.com/927901 [ android ] Pixel_Video_MP4_DXVA [ Skip ]