DisplayWgpu: Remove wgpu::FeatureName::SurfaceCapabilities

This feature used to allow querying the wgpu::TextureUsage allowed with
a wgpu::Surface. This is no longer necessary to have as an extension
since wgpu::Surface supports this capability by default (after it was
made a replacement of wgpu::SwapChain).

Remove the now useless mention of this feature that was blocking the
removal of the feature's code from Dawn.

Bug: b/42241264
Change-Id: Ia097f2f6077fa655a2b4b495cdcf3f1fa5f23d55
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5904059
Commit-Queue: Geoff Lang <[email protected]>
Reviewed-by: Geoff Lang <[email protected]>

src/libANGLE/renderer/wgpu/DisplayWgpu.cpp

@@ -284,8 +284,7 @@ egl::Error DisplayWgpu::createWgpuDevice()
 
     mAdapter = adapterResult.adapter;
 
-    std::vector<wgpu::FeatureName> requiredFeatures;
-    requiredFeatures.push_back(wgpu::FeatureName::SurfaceCapabilities);
+    std::vector<wgpu::FeatureName> requiredFeatures;  // empty for now
 
     wgpu::DeviceDescriptor deviceDesc;
     deviceDesc.requiredFeatureCount = requiredFeatures.size();