Remove flaky suppression for random_separate_points.html .

The underlying bug should be fixed.

Tbr: ynovikov@chromium.org
Bug: 857112
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: Ie0f277447d01644f0c76134d6d7d570f5f03d8fc
Reviewed-on: https://chromium-review.googlesource.com/1121595Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#571758}

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -558,10 +558,6 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         'texsubimage3d_pbo_3d_01.html',
         ['mac', ('nvidia', 0xfe9)], bug=614174)
 
-    self.Flaky('deqp/functional/gles3/transformfeedback/' +
-        'random_separate_points.html',
-        ['mac', ('nvidia', 0xfe9)], bug=857112)
-
     self.Fail('deqp/functional/gles3/fragmentoutput/array.fixed.html',
         ['mac', ('nvidia', 0xfe9)], bug=483282)
     self.Fail('deqp/functional/gles3/fragmentoutput/basic.fixed.html',