Remove a redundant clear() call

gpu/command_buffer/service/query_manager.cc

Index: gpu/command_buffer/service/query_manager.cc
diff --git a/gpu/command_buffer/service/query_manager.cc b/gpu/command_buffer/service/query_manager.cc
index 9c1ac4280a80125c003b9dcb093da448f2262930..8c2fe286e6796d22cf33ad06a2ab0d2c48efdd82 100644
--- a/gpu/command_buffer/service/query_manager.cc
+++ b/gpu/command_buffer/service/query_manager.cc
@@ -742,7 +742,6 @@ void QueryManager::Destroy(bool have_context) {
   active_queries_.clear();
   pending_queries_.clear();
   pending_transfer_queries_.clear();
-  active_queries_.clear();
   while (!queries_.empty()) {
     Query* query = queries_.begin()->second.get();
     query->Destroy(have_context);