Remove stale win7/nvidia/debug expectation

Change-Id: I715aecc5baa191f316c8c311e144e578f71deb52
Bug: 751849
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2113814
Auto-Submit: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#752271}

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

@@ -128,7 +128,6 @@ crbug.com/772037 [ win7 debug amd d3d11 passthrough ] conformance/textures/misc/
 crbug.com/772037 [ win7 release amd d3d11 passthrough ] conformance/extensions/oes-texture-half-float.html [ RetryOnFailure ]
 
 # Win / NVIDIA / Passthrough command decoder / D3D11
-crbug.com/751849 [ win7 debug nvidia d3d11 passthrough ] conformance/extensions/oes-texture-half-float-with-video.html [ RetryOnFailure ]
 # crbug.com/737016 [ win nvidia d3d11 passthrough ] conformance/programs/program-test.html [ RetryOnFailure ]
 
 # Vulkan / Passthrough command decoder