Issue #21 - Remove Telemetry accumulation/structures from toolkit js.

This fixes toolkit modules and prevents toolkit component breakage.
Also removes about:telemetry

toolkit/components/osfile/NativeOSFileInternals.cpp

@@ -169,7 +169,7 @@ public:
    * as the AbstractResult is cycle-collected.
    *
    * @param aStartDate The instant at which the operation was
-   * requested.  Used to collect Telemetry statistics.
+   * requested.
    */
   explicit AbstractResult(TimeStamp aStartDate)
     : mStartDate(aStartDate)
@@ -182,7 +182,7 @@ public:
    * Setup the AbstractResult once data is available.
    *
    * @param aDispatchDate The instant at which the IO thread received
-   * the operation request. Used to collect Telemetry statistics.
+   * the operation request.
    * @param aExecutionDuration The duration of the operation on the
    * IO thread.
    */

toolkit/components/osfile/modules/osfile_async_front.jsm

@@ -434,34 +434,11 @@ var Scheduler = this.Scheduler = {
         Scheduler.Debugging.latestReceived = [Date.now(), error.message, error.fileName, error.lineNumber];
         throw error;
       } finally {
-        if (firstLaunch) {
-          Scheduler._updateTelemetry();
-        }
         Scheduler.restartTimer();
       }
     }.bind(this)));
-  },
-
-  /**
-   * Post Telemetry statistics.
-   *
-   * This is only useful on first launch.
-   */
-  _updateTelemetry: function() {
-    let worker = this.worker;
-    let workerTimeStamps = worker.workerTimeStamps;
-    if (!workerTimeStamps) {
-      // If the first call to OS.File results in an uncaught errors,
-      // the timestamps are absent. As this case is a developer error,
-      // let's not waste time attempting to extract telemetry from it.
-      return;
-    }
-    let HISTOGRAM_LAUNCH = Services.telemetry.getHistogramById("OSFILE_WORKER_LAUNCH_MS");
-    HISTOGRAM_LAUNCH.add(worker.workerTimeStamps.entered - worker.launchTimeStamp);
-
-    let HISTOGRAM_READY = Services.telemetry.getHistogramById("OSFILE_WORKER_READY_MS");
-    HISTOGRAM_READY.add(worker.workerTimeStamps.loaded - worker.launchTimeStamp);
   }
+
 };
 
 const PREF_OSFILE_LOG = "toolkit.osfile.log";

toolkit/components/osfile/modules/osfile_async_worker.js

@@ -12,7 +12,6 @@ if (this.Components) {
 (function(exports) {
   "use strict";
 
-  // Timestamps, for use in Telemetry.
   // The object is set to |null| once it has been sent
   // to the main thread.
   let timeStamps = {