Update tex-2d-rgb-rgb-unsigned_byte Suppression

The current suppression for tex-2d-rgb-rgb-unsigned_byte was
only for non-angle. However the test also flakes on angle.

This updates the suppression to reflect that.

TBR=kbr@chromium.org
TEST=conformance/textures/image_bitmap_from_video/tex-2d-rgb-rgb-unsigned_byte.html
webgl_conformance_tests
Bug:834933

Change-Id: I170c6c4cae5c0ba039b7505d4b4f5461f9774591
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2229238Reviewed-by: Jonathan Ross <jonross@chromium.org>
Commit-Queue: Jonathan Ross <jonross@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774695}

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

@@ -447,7 +447,7 @@ crbug.com/907512 [ android android-chromium ] conformance/textures/video/tex-2d-
 crbug.com/733599 [ android ] conformance/textures/video/tex-2d-alpha-alpha-unsigned_byte.html [ RetryOnFailure ]
 crbug.com/733599 [ android no-angle ] conformance/textures/video/tex-2d-luminance_alpha-luminance_alpha-unsigned_byte.html [ RetryOnFailure ]
 crbug.com/733599 [ android no-angle ] conformance/textures/video/tex-2d-luminance-luminance-unsigned_byte.html [ RetryOnFailure ]
-crbug.com/834933 [ android android-chromium no-angle ] conformance/textures/video/tex-2d-rgb-rgb-unsigned_byte.html [ RetryOnFailure ]
+crbug.com/834933 [ android android-chromium ] conformance/textures/video/tex-2d-rgb-rgb-unsigned_byte.html [ RetryOnFailure ]
 crbug.com/834933 [ android android-chromium ] conformance/textures/video/tex-2d-rgba-rgba-unsigned_byte.html [ RetryOnFailure ]
 crbug.com/891456 [ android ] conformance/textures/image_bitmap_from_video/tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html [ RetryOnFailure ]