Revert "Disable SamplerTests on NVIDIA D3D11"

This reverts commit f8ef5e95ac.

Reason for revert: Not the cause of flakes.

Original change's description:
> Disable SamplerTests on NVIDIA D3D11
>
> Suspect to be causing flakes in D3D12 sampler tests
>
> Bug: dawn:1779
> Change-Id: I7a8518683142191e05c7befed078d69abdaf9b77
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/129280
> Reviewed-by: Loko Kung <lokokung@google.com>
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Commit-Queue: Austin Eng <enga@chromium.org>

Change-Id: I72630f21d861acd9e266a0ac0c80e917f4f440bb
Bug: dawn:1779
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/129600
Reviewed-by: Loko Kung <lokokung@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>

src/dawn/tests/end2end/SamplerTests.cpp

@@ -53,11 +53,6 @@ class SamplerTest : public DawnTest {
   protected:
     void SetUp() override {
         DawnTest::SetUp();
-
-        // TODO(crbug.com/dawn/1779): D3D11 sampler tests seem to cause flakes in D3D12 sampler
-        // tests.
-        DAWN_SUPPRESS_TEST_IF(IsNvidia() && IsD3D11());
-
         mRenderPass = utils::CreateBasicRenderPass(device, kRTSize, kRTSize);
 
         wgpu::TextureDescriptor descriptor;