[android] #3907 - Clearing any / all events in memory at the time of Telemetry being disabled

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/telemetry/MapboxEventManager.java

@@ -193,6 +193,7 @@ public class MapboxEventManager {
         } else {
             Log.i(TAG, "Shutting Telemetry Down");
             // Shut It Down
+            events.removeAllElements();
             context.stopService(new Intent(context, TelemetryService.class));
 
             if (timer != null) {