Revert "Speculatively suppress RequiredBufferSizeInCopyTests on Win Intel x86"

This reverts commit 3199179167.

Reason for revert: Suppressing these tests didn't help flakes at all.

Original change's description:
> Speculatively suppress RequiredBufferSizeInCopyTests on Win Intel x86
>
> Bug: dawn:1375
> Change-Id: Ieb218fc90e93734f2ccaacaf9a0dd22c57d93163
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86866
> Reviewed-by: Loko Kung <lokokung@google.com>
> Commit-Queue: Austin Eng <enga@chromium.org>
> Kokoro: Kokoro <noreply+kokoro@google.com>

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: dawn:1375
Change-Id: I3b725340516e25b0c8bffb8b817c86278645aba8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87320
Commit-Queue: Austin Eng <enga@chromium.org>
Auto-Submit: Austin Eng <enga@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Loko Kung <lokokung@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>

src/dawn/tests/end2end/RequiredBufferSizeInCopyTests.cpp

@@ -14,7 +14,6 @@
 
 #include "dawn/tests/DawnTest.h"
 
-#include "dawn/common/Platform.h"
 #include "dawn/utils/TestUtils.h"
 #include "dawn/utils/WGPUHelpers.h"
 
@@ -72,14 +71,6 @@ namespace {
 class RequiredBufferSizeInCopyTests
     : public DawnTestWithParams<RequiredBufferSizeInCopyTestsParams> {
   protected:
-    void SetUp() override {
-        DawnTestWithParams<RequiredBufferSizeInCopyTestsParams>::SetUp();
-#ifdef DAWN_PLATFORM_32_BIT
-        // Suspect causing flaky hangs or crashes. crbug.com/dawn/1375.
-        DAWN_SUPPRESS_TEST_IF(IsWindows() && IsIntel());
-#endif
-    }
-
     void DoTest(const uint64_t bufferSize) {
         wgpu::BufferDescriptor descriptor;
         descriptor.size = bufferSize;