Revert "[v8-browsing] Add WebAssembly UMA metrics to v8-browsing"

This reverts commit 6e5458b0.

Reason for revert: UMA metrics cause errors when more than one WebAssembly module gets compiled, see https://bugs.chromium.org/p/chromium/issues/detail?id=1163528

Original change's description:
> [v8-browsing] Add WebAssembly UMA metrics to v8-browsing
>
> This CL brings WebAssembly UMA metrics to the v8-browsing benchmark in
> Telemetry.
>
> R=​mythria@chromium.org, clemensb@chromium.org
>
> Bug: chromium:1084929
> Change-Id: I28e72378774c3d599da1ad670ba036a3f0ea84e0
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2497164
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Reviewed-by: John Chen <johnchen@chromium.org>
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#820779}

TBR=ahaas@chromium.org,mythria@chromium.org,clemensb@chromium.org,johnchen@chromium.org

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

Bug: chromium:1084929, chromium:1163528
Change-Id: Id160376c4f56c160cf48bb9575e4b3c6d629e540
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2627153Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844012}

tools/perf/benchmarks/v8_browsing.py

@@ -11,19 +11,6 @@ from telemetry.timeline import chrome_trace_config
 from telemetry.web_perf import timeline_based_measurement
 import page_sets
 
-V8_BROWSING_BENCHMARK_UMA = [
-    'V8.WasmCompileModuleMicroSeconds.wasm',
-    'V8.WasmCompileModuleAsyncMicroSeconds',
-    'V8.WasmCompileModuleStreamingMicroSeconds',
-    'V8.WasmFinishModuleStreamingMicroSeconds',
-    'V8.WasmTierUpModuleMicroSeconds',
-    'V8.WasmCompileFunctionMicroSeconds.wasm',
-    'V8.WasmInstantiateModuleMicroSeconds.wasm',
-    'V8.WasmModuleCodeSizeTopTierMiB',
-    'V8.WasmCompileFunctionPeakMemoryBytes',
-    'V8.WasmModuleCodeSizeMiB',
-]
-
 
 def AugmentOptionsForV8BrowsingMetrics(options, enable_runtime_call_stats=True):
   categories = [
@@ -57,9 +44,6 @@ def AugmentOptionsForV8BrowsingMetrics(options, enable_runtime_call_stats=True):
 
   options.config.chrome_trace_config.SetTraceBufferSizeInKb(400 * 1024)
 
-  options.config.chrome_trace_config.EnableUMAHistograms(
-      *V8_BROWSING_BENCHMARK_UMA)
-
   metrics = [
       'blinkGcMetric',
       'consoleErrorMetric',
@@ -68,7 +52,6 @@ def AugmentOptionsForV8BrowsingMetrics(options, enable_runtime_call_stats=True):
       'memoryMetric',
       'pcscanMetric',
       'reportedByPageMetric',
-      'umaMetric',
       'wasmMetric',
   ]
   options.ExtendTimelineBasedMetric(metrics)