Revert "[wasm][ukm] Add tests for Wasm events"

This reverts commit d7b20edc.

Reason for revert: Introduces data races - https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/32898

Original change's description:
> [wasm][ukm] Add tests for Wasm events
> 
> Ensure that events are triggered when a module is decoded, compiled,
> instantiated and tiered-up.
> 
> R=​clemensb@chromium.org
> 
> Bug: chromium:1092417
> 
> Change-Id: I9dc87957fc03023c5ab1c4f49e865957c8324e1a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2351676
> Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#69508}

TBR=clemensb@chromium.org,ecmziegler@chromium.org

Change-Id: I9bcfeda1048939a8142f5003b03feab399f9de96
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1092417
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2366785Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69509}

src/wasm/module-compiler.cc

@@ -2475,7 +2475,6 @@ void AsyncStreamingProcessor::OnFinishedChunk() {
 void AsyncStreamingProcessor::OnFinishedStream(OwnedVector<uint8_t> bytes) {
   TRACE_STREAMING("Finish stream...\n");
   DCHECK_EQ(NativeModuleCache::PrefixHash(bytes.as_vector()), prefix_hash_);
-  decoder_.SetModuleWireBytes(bytes.begin(), bytes.end());
   ModuleResult result = decoder_.FinishDecoding(false);
   if (result.failed()) {
     FinishAsyncCompileJobWithError(result.error());

src/wasm/module-decoder.cc

@@ -295,8 +295,6 @@ class ModuleDecoderImpl : public Decoder {
   explicit ModuleDecoderImpl(const WasmFeatures& enabled, ModuleOrigin origin)
       : Decoder(nullptr, nullptr),
         enabled_features_(enabled),
-        module_start_(nullptr),
-        module_end_(nullptr),
         origin_(FLAG_assume_asmjs_origin ? kAsmJsSloppyOrigin : origin) {}
 
   ModuleDecoderImpl(const WasmFeatures& enabled, const byte* module_start,
@@ -308,13 +306,6 @@ class ModuleDecoderImpl : public Decoder {
       error(start_, "end is less than start");
       end_ = start_;
     }
-    SetModuleWireBytes(module_start, module_end);
-  }
-
-  void SetModuleWireBytes(const byte* module_start, const byte* module_end) {
-    DCHECK_NOT_NULL(module_start);
-    DCHECK_NOT_NULL(module_end);
-    DCHECK_GE(module_end, module_start);
     module_start_ = module_start;
     module_end_ = module_end;
   }
@@ -1223,7 +1214,7 @@ class ModuleDecoderImpl : public Decoder {
 
     if (metrics_) {
       metrics_->success = ok() && !intermediate_error_.has_error();
-      metrics_->module_size_in_bytes = module_end_ - module_start_;
+      metrics_->module_size_in_bytes = end() - start();
       metrics_->function_count = module_->num_declared_functions;
       metrics_.reset();
     }
@@ -2228,11 +2219,6 @@ const std::shared_ptr<WasmModule>& ModuleDecoder::shared_module() const {
   return impl_->shared_module();
 }
 
-void ModuleDecoder::SetModuleWireBytes(const byte* module_start,
-                                       const byte* module_end) {
-  impl_->SetModuleWireBytes(module_start, module_end);
-}
-
 void ModuleDecoder::StartDecoding(
     Counters* counters, std::shared_ptr<metrics::Recorder> metrics_recorder,
     v8::metrics::Recorder::ContextId context_id, AccountingAllocator* allocator,

src/wasm/module-decoder.h

@@ -199,8 +199,6 @@ class ModuleDecoder {
   explicit ModuleDecoder(const WasmFeatures& enabled);
   ~ModuleDecoder();
 
-  void SetModuleWireBytes(const byte* module_start, const byte* module_end);
-
   void StartDecoding(Counters* counters,
                      std::shared_ptr<metrics::Recorder> metrics_recorder,
                      v8::metrics::Recorder::ContextId context_id,

src/wasm/wasm-code-manager.cc

@@ -676,7 +676,7 @@ Vector<byte> WasmCodeAllocator::AllocateForCodeInRegion(
   }
   DCHECK(IsAligned(code_space.begin(), kCodeAlignment));
   allocated_code_space_.Merge(code_space);
-  generated_code_size_.fetch_add(code_space.size(), std::memory_order_release);
+  generated_code_size_.fetch_add(code_space.size(), std::memory_order_relaxed);
 
   TRACE_HEAP("Code alloc for %p: 0x%" PRIxPTR ",+%zu\n", this,
              code_space.begin(), size);

test/cctest/BUILD.gn

@@ -304,7 +304,6 @@ v8_source_set("cctest_sources") {
     "wasm/test-wasm-debug-evaluate.cc",
     "wasm/test-wasm-debug-evaluate.h",
     "wasm/test-wasm-import-wrapper-cache.cc",
-    "wasm/test-wasm-metrics.cc",
     "wasm/test-wasm-serialization.cc",
     "wasm/test-wasm-shared-engine.cc",
     "wasm/test-wasm-stack.cc",

test/cctest/cctest.status

@@ -508,7 +508,6 @@
   'test-wasm-codegen/*': [SKIP],
   'test-wasm-debug-evaluate/*': [SKIP],
   'test-wasm-import-wrapper-cache/*': [SKIP],
-  'test-wasm-metrics/*': [SKIP],
   'test-wasm-serialization/*': [SKIP],
   'test-wasm-shared-engine/*': [SKIP],
   'test-wasm-stack/*': [SKIP],