Delete obsolete GPU rasterization content whitelist code

content/browser/gpu/gpu_data_manager_impl_private.cc

Index: content/browser/gpu/gpu_data_manager_impl_private.cc
diff --git a/content/browser/gpu/gpu_data_manager_impl_private.cc b/content/browser/gpu/gpu_data_manager_impl_private.cc
index bbf7231c954858ff4828b1745ea994a9b177050f..fd705c8967ac20837a5d2c6b45f039d7c71b3fa2 100644
--- a/content/browser/gpu/gpu_data_manager_impl_private.cc
+++ b/content/browser/gpu/gpu_data_manager_impl_private.cc
@@ -699,12 +699,6 @@ void GpuDataManagerImplPrivate::UpdateRendererWebPrefs(
           switches::kDisableAcceleratedVideoDecode)) {
     prefs->pepper_accelerated_video_decode_enabled = true;
   }
-
-  if (!IsFeatureBlacklisted(
-          gpu::GPU_FEATURE_TYPE_GPU_RASTERIZATION_EXPANDED_HEURISTICS) ||
-      base::FieldTrialList::FindFullName(
-          "GpuRasterizationExpandedContentWhitelist") == "Enabled")
-    prefs->use_expanded_heuristics_for_gpu_rasterization = true;
 }
 
 void GpuDataManagerImplPrivate::DisableHardwareAcceleration() {