diff --git a/metricsd/metrics_daemon.cc b/metricsd/metrics_daemon.cc
index b606fd0..e711660 100644
--- a/metricsd/metrics_daemon.cc
+++ b/metricsd/metrics_daemon.cc
@@ -74,11 +74,6 @@
 const char kMeminfoFileName[] = "/proc/meminfo";
 const char kVmStatFileName[] = "/proc/vmstat";
 
-// Thermal CPU throttling.
-
-const char kMetricScaledCpuFrequencyName[] =
-    "Platform.CpuFrequencyThermalScaling";
-
 }  // namespace
 
 // Zram sysfs entries.
@@ -169,8 +164,6 @@
                          bool dbus_enabled,
                          MetricsLibraryInterface* metrics_lib,
                          const string& diskstats_path,
-                         const string& scaling_max_freq_path,
-                         const string& cpuinfo_max_freq_path,
                          const base::TimeDelta& upload_interval,
                          const string& server,
                          const base::FilePath& metrics_directory) {
@@ -221,8 +214,6 @@
   weekly_cycle_.reset(new PersistentInteger("weekly.cycle"));
   version_cycle_.reset(new PersistentInteger("version.cycle"));
 
-  scaling_max_freq_path_ = scaling_max_freq_path;
-  cpuinfo_max_freq_path_ = cpuinfo_max_freq_path;
   disk_usage_collector_.reset(new DiskUsageCollector(metrics_lib_));
   averaged_stats_collector_.reset(
       new AveragedStatisticsCollector(metrics_lib_, diskstats_path,
@@ -461,63 +452,6 @@
   averaged_stats_collector_->ScheduleWait();
 }
 
-
-bool MetricsDaemon::ReadFreqToInt(const string& sysfs_file_name, int* value) {
-  const FilePath sysfs_path(sysfs_file_name);
-  string value_string;
-  if (!base::ReadFileToString(sysfs_path, &value_string)) {
-    LOG(WARNING) << "cannot read " << sysfs_path.value().c_str();
-    return false;
-  }
-  if (!base::RemoveChars(value_string, "\n", &value_string)) {
-    LOG(WARNING) << "no newline in " << value_string;
-    // Continue even though the lack of newline is suspicious.
-  }
-  if (!base::StringToInt(value_string, value)) {
-    LOG(WARNING) << "cannot convert " << value_string << " to int";
-    return false;
-  }
-  return true;
-}
-
-void MetricsDaemon::SendCpuThrottleMetrics() {
-  // |max_freq| is 0 only the first time through.
-  static int max_freq = 0;
-  if (max_freq == -1)
-    // Give up, as sysfs did not report max_freq correctly.
-    return;
-  if (max_freq == 0 || testing_) {
-    // One-time initialization of max_freq.  (Every time when testing.)
-    if (!ReadFreqToInt(cpuinfo_max_freq_path_, &max_freq)) {
-      max_freq = -1;
-      return;
-    }
-    if (max_freq == 0) {
-      LOG(WARNING) << "sysfs reports 0 max CPU frequency\n";
-      max_freq = -1;
-      return;
-    }
-    if (max_freq % 10000 == 1000) {
-      // Special case: system has turbo mode, and max non-turbo frequency is
-      // max_freq - 1000.  This relies on "normal" (non-turbo) frequencies
-      // being multiples of (at least) 10 MHz.  Although there is no guarantee
-      // of this, it seems a fairly reasonable assumption.  Otherwise we should
-      // read scaling_available_frequencies, sort the frequencies, compare the
-      // two highest ones, and check if they differ by 1000 (kHz) (and that's a
-      // hack too, no telling when it will change).
-      max_freq -= 1000;
-    }
-  }
-  int scaled_freq = 0;
-  if (!ReadFreqToInt(scaling_max_freq_path_, &scaled_freq))
-    return;
-  // Frequencies are in kHz.  If scaled_freq > max_freq, turbo is on, but
-  // scaled_freq is not the actual turbo frequency.  We indicate this situation
-  // with a 101% value.
-  int percent = scaled_freq > max_freq ? 101 : scaled_freq / (max_freq / 100);
-  SendLinearSample(kMetricScaledCpuFrequencyName, percent, 101, 102);
-}
-
 void MetricsDaemon::ScheduleMeminfoCallback(int wait) {
   if (testing_) {
     return;
diff --git a/metricsd/metrics_daemon.h b/metricsd/metrics_daemon.h
index f12b02e..54ae188 100644
--- a/metricsd/metrics_daemon.h
+++ b/metricsd/metrics_daemon.h
@@ -51,8 +51,6 @@
             bool dbus_enabled,
             MetricsLibraryInterface* metrics_lib,
             const std::string& diskstats_path,
-            const std::string& cpuinfo_max_freq_path,
-            const std::string& scaling_max_freq_path,
             const base::TimeDelta& upload_interval,
             const std::string& server,
             const base::FilePath& metrics_directory);
@@ -92,12 +90,10 @@
   FRIEND_TEST(MetricsDaemonTest, ProcessUncleanShutdown);
   FRIEND_TEST(MetricsDaemonTest, ProcessUserCrash);
   FRIEND_TEST(MetricsDaemonTest, ReportCrashesDailyFrequency);
-  FRIEND_TEST(MetricsDaemonTest, ReadFreqToInt);
   FRIEND_TEST(MetricsDaemonTest, ReportKernelCrashInterval);
   FRIEND_TEST(MetricsDaemonTest, ReportUncleanShutdownInterval);
   FRIEND_TEST(MetricsDaemonTest, ReportUserCrashInterval);
   FRIEND_TEST(MetricsDaemonTest, SendSample);
-  FRIEND_TEST(MetricsDaemonTest, SendCpuThrottleMetrics);
   FRIEND_TEST(MetricsDaemonTest, SendZramMetrics);
 
   // Type of scale to use for meminfo histograms.  For most of them we use
@@ -215,12 +211,6 @@
   // Parses meminfo data and sends it to UMA.
   bool ProcessMemuse(const std::string& meminfo_raw);
 
-  // Sends stats for thermal CPU throttling.
-  void SendCpuThrottleMetrics();
-
-  // Reads an integer CPU frequency value from sysfs.
-  bool ReadFreqToInt(const std::string& sysfs_file_name, int* value);
-
   // Reads the current OS version from /etc/lsb-release and hashes it
   // to a unsigned 32-bit int.
   uint32_t GetOsVersionHash();
@@ -301,9 +291,6 @@
   scoped_ptr<DiskUsageCollector> disk_usage_collector_;
   scoped_ptr<AveragedStatisticsCollector> averaged_stats_collector_;
 
-  std::string scaling_max_freq_path_;
-  std::string cpuinfo_max_freq_path_;
-
   base::TimeDelta upload_interval_;
   std::string server_;
 
diff --git a/metricsd/metrics_daemon_main.cc b/metricsd/metrics_daemon_main.cc
index 8573f68..9bb67e8 100644
--- a/metricsd/metrics_daemon_main.cc
+++ b/metricsd/metrics_daemon_main.cc
@@ -25,10 +25,6 @@
 #include "constants.h"
 #include "metrics_daemon.h"
 
-const char kScalingMaxFreqPath[] =
-    "/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq";
-const char kCpuinfoMaxFreqPath[] =
-    "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq";
 
 // Returns the path to the disk stats in the sysfs.  Returns the null string if
 // it cannot find the disk stats file.
@@ -112,8 +108,6 @@
               FLAGS_withdbus,
               &metrics_lib,
               MetricsMainDiskStatsPath(),
-              kScalingMaxFreqPath,
-              kCpuinfoMaxFreqPath,
               base::TimeDelta::FromSeconds(FLAGS_upload_interval_secs),
               FLAGS_server,
               base::FilePath(FLAGS_metrics_directory));
diff --git a/metricsd/metrics_daemon_test.cc b/metricsd/metrics_daemon_test.cc
index d3c9a23..2e8a85b 100644
--- a/metricsd/metrics_daemon_test.cc
+++ b/metricsd/metrics_daemon_test.cc
@@ -45,11 +45,6 @@
   virtual void SetUp() {
     brillo::FlagHelper::Init(0, nullptr, "");
     EXPECT_TRUE(temp_dir_.CreateUniqueTempDir());
-    scaling_max_freq_path_ = temp_dir_.path().Append("scaling_max");
-    cpu_max_freq_path_ = temp_dir_.path().Append("cpu_freq_max");
-
-    CreateUint64ValueFile(cpu_max_freq_path_, 10000000);
-    CreateUint64ValueFile(scaling_max_freq_path_, 10000000);
 
     chromeos_metrics::PersistentInteger::SetMetricsDirectory(
         temp_dir_.path().value());
@@ -58,8 +53,6 @@
                  true,
                  &metrics_lib_,
                  "",
-                 scaling_max_freq_path_.value(),
-                 cpu_max_freq_path_.value(),
                  base::TimeDelta::FromMinutes(30),
                  metrics::kMetricsServer,
                  temp_dir_.path());
@@ -120,10 +113,6 @@
   // Temporary directory used for tests.
   base::ScopedTempDir temp_dir_;
 
-  // Path for the fake files.
-  base::FilePath scaling_max_freq_path_;
-  base::FilePath cpu_max_freq_path_;
-
   // Mocks. They are strict mock so that all unexpected
   // calls are marked as failures.
   StrictMock<MetricsLibraryMock> metrics_lib_;
@@ -209,33 +198,6 @@
   EXPECT_FALSE(daemon_.ProcessMeminfo(meminfo));
 }
 
-TEST_F(MetricsDaemonTest, ReadFreqToInt) {
-  const int fake_scaled_freq = 1666999;
-  const int fake_max_freq = 2000000;
-  int scaled_freq = 0;
-  int max_freq = 0;
-  CreateUint64ValueFile(scaling_max_freq_path_, fake_scaled_freq);
-  CreateUint64ValueFile(cpu_max_freq_path_, fake_max_freq);
-  EXPECT_TRUE(daemon_.testing_);
-  EXPECT_TRUE(daemon_.ReadFreqToInt(scaling_max_freq_path_.value(),
-                                    &scaled_freq));
-  EXPECT_TRUE(daemon_.ReadFreqToInt(cpu_max_freq_path_.value(), &max_freq));
-  EXPECT_EQ(fake_scaled_freq, scaled_freq);
-  EXPECT_EQ(fake_max_freq, max_freq);
-}
-
-TEST_F(MetricsDaemonTest, SendCpuThrottleMetrics) {
-  CreateUint64ValueFile(cpu_max_freq_path_, 2001000);
-  // Test the 101% and 100% cases.
-  CreateUint64ValueFile(scaling_max_freq_path_, 2001000);
-  EXPECT_TRUE(daemon_.testing_);
-  EXPECT_CALL(metrics_lib_, SendEnumToUMA(_, 101, 101));
-  daemon_.SendCpuThrottleMetrics();
-  CreateUint64ValueFile(scaling_max_freq_path_, 2000000);
-  EXPECT_CALL(metrics_lib_, SendEnumToUMA(_, 100, 101));
-  daemon_.SendCpuThrottleMetrics();
-}
-
 TEST_F(MetricsDaemonTest, SendZramMetrics) {
   EXPECT_TRUE(daemon_.testing_);