Revert of Add more trace events to "benchmark" category

ui/events/latency_info.cc

Index: ui/events/latency_info.cc
diff --git a/ui/events/latency_info.cc b/ui/events/latency_info.cc
index 4d46b1dcf0ffa9ee73a7e63867a0e727777e552a..6050d260129072c3c5c4e0410862cb9c97fca1aa 100644
--- a/ui/events/latency_info.cc
+++ b/ui/events/latency_info.cc
@@ -252,7 +252,7 @@
     }
 
     TRACE_EVENT_FLOW_BEGIN0(
-        "input,benchmark", "LatencyInfo.Flow", TRACE_ID_DONT_MANGLE(trace_id));
+        "input", "LatencyInfo.Flow", TRACE_ID_DONT_MANGLE(trace_id));
   }
 
   LatencyMap::key_type key = std::make_pair(component, id);
@@ -287,7 +287,7 @@
     }
 
     TRACE_EVENT_FLOW_END0(
-        "input,benchmark", "LatencyInfo.Flow", TRACE_ID_DONT_MANGLE(trace_id));
+        "input", "LatencyInfo.Flow", TRACE_ID_DONT_MANGLE(trace_id));
   }
 }