Cleanup.

src/main/java/de/dennisguse/opentracks/chart/ChartView.java

@@ -905,7 +905,7 @@ public class ChartView extends View {
         for (ChartValueSeries chartValueSeries : seriesList) {
             chartValueSeries.updateDimension();
         }
-        float density = getContext().getResources().getDisplayMetrics().density;
+        float density = getResources().getDisplayMetrics().density;
         spacer = (int) (density * SPACER);
         yAxisOffset = (int) (density * Y_AXIS_OFFSET);
 

src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordingFragment.java

@@ -201,7 +201,7 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
-        recordingGpsAccuracy = Integer.parseInt(getContext().getResources().getString(R.string.recording_gps_accuracy_default));
+        recordingGpsAccuracy = Integer.parseInt(getResources().getString(R.string.recording_gps_accuracy_default));
 
         handlerUpdateUI = new Handler();
 

src/main/java/de/dennisguse/opentracks/util/AnnouncementUtils.java

@@ -31,7 +31,7 @@ public class AnnouncementUtils {
 
         String rate;
         String currentRate;
-        String currentRateMsg = "";
+        String currentRateMsg;
         if (reportSpeed) {
             int speedId = metricUnits ? R.plurals.voiceSpeedKilometersPerHour : R.plurals.voiceSpeedMilesPerHour;
             rate = context.getResources().getQuantityString(speedId, getQuantityCount(distancePerTime), distancePerTime);