Remove openglui embedder code

runtime/embedders/openglui/common/timer.cc

Index: runtime/embedders/openglui/common/timer.cc
diff --git a/runtime/embedders/openglui/common/timer.cc b/runtime/embedders/openglui/common/timer.cc
deleted file mode 100644
index 9a0e2afc2867f4b89e4308f0d9004f566b76a390..0000000000000000000000000000000000000000
--- a/runtime/embedders/openglui/common/timer.cc
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#include "embedders/openglui/common/timer.h"
-
-#define NANO (+1.0E-9)
-
-#ifdef __MACH__
-#include <mach/mach.h>
-#include <mach/mach_time.h>
-#include <sys/time.h>
-
-#define GIGA UINT64_C(1000000000)
-
-#define CLOCK_REALTIME    0
-#define CLOCK_MONOTONIC   1
-
-double timebase = 0.0;
-uint64_t timestart = 0;
-
-void clock_gettime(int type, timespec* t) {
-  if (!timestart) {
-    mach_timebase_info_data_t tb = { 0, 1 };
-    mach_timebase_info(&tb);
-    timebase = tb.numer;
-    timebase /= tb.denom;
-    timestart = mach_absolute_time();
-  }
-  if (type == CLOCK_MONOTONIC) {
-    double diff = (mach_absolute_time() - timestart) * timebase;
-    t->tv_sec = diff * NANO;
-    t->tv_nsec = diff - (t->tv_sec * GIGA);
-  } else {  // type == CLOCK_REALTIME
-    struct timeval now;
-    gettimeofday(&now, NULL);
-    t->tv_sec  = now.tv_sec;
-    t->tv_nsec = now.tv_usec * 1000;
-  }
-}
-#endif
-
-Timer::Timer() : elapsed_(0.0f), last_time_(0.0) {
-}
-
-void Timer::Reset() {
-  elapsed_ = 0.0f;
-  last_time_ = Now();
-}
-
-void Timer::Update() {
-  double current = Now();
-  elapsed_ = (current - last_time_);
-  last_time_ = current;
-}
-
-double Timer::Now() {
-  timespec timeval;
-  clock_gettime(CLOCK_MONOTONIC, &timeval);
-  return timeval.tv_sec + (timeval.tv_nsec * NANO);
-}
-
-float Timer::Elapsed() {
-  return elapsed_;
-}
-