Remove a couple of unnecessary Traces

These were accidentally left over from a removed change in a previous CL

Bug: 1121762
Change-Id: Iff01ecbd0c78a96535cc0193d03e18eb04d98042
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2382115
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#803096}

third_party/blink/renderer/modules/webgpu/gpu_render_bundle_encoder.cc

@@ -187,9 +187,4 @@ GPURenderBundle* GPURenderBundleEncoder::finish(
   return MakeGarbageCollected<GPURenderBundle>(device_, render_bundle);
 }
 
-void GPURenderBundleEncoder::Trace(Visitor* visitor) const {
-  visitor->Trace(device_);
-  DawnObject::Trace(visitor);
-}
-
 }  // namespace blink

third_party/blink/renderer/modules/webgpu/gpu_render_bundle_encoder.h

@@ -70,8 +70,6 @@ class GPURenderBundleEncoder : public DawnObject<WGPURenderBundleEncoder>,
 
   GPURenderBundle* finish(const GPURenderBundleDescriptor* webgpu_desc);
 
-  void Trace(Visitor*) const override;
-
  private:
   DISALLOW_COPY_AND_ASSIGN(GPURenderBundleEncoder);
 };

third_party/blink/renderer/modules/webgpu/gpu_render_pass_encoder.cc

@@ -182,9 +182,4 @@ void GPURenderPassEncoder::endPass() {
   GetProcs().renderPassEncoderEndPass(GetHandle());
 }
 
-void GPURenderPassEncoder::Trace(Visitor* visitor) const {
-  visitor->Trace(device_);
-  DawnObject::Trace(visitor);
-}
-
 }  // namespace blink

third_party/blink/renderer/modules/webgpu/gpu_render_pass_encoder.h

@@ -75,8 +75,6 @@ class GPURenderPassEncoder : public DawnObject<WGPURenderPassEncoder>,
   void executeBundles(const HeapVector<Member<GPURenderBundle>>& bundles);
   void endPass();
 
-  void Trace(Visitor*) const override;
-
  private:
   DISALLOW_COPY_AND_ASSIGN(GPURenderPassEncoder);
 };