Cleanup.

src/androidTest/java/de/dennisguse/opentracks/EspressoDeleteTrackTest.java

@@ -143,7 +143,7 @@ public class EspressoDeleteTrackTest {
     private static Matcher<View> childAtPosition(
             final Matcher<View> parentMatcher, final int position) {
 
-        return new TypeSafeMatcher<View>() {
+        return new TypeSafeMatcher<>() {
             @Override
             public void describeTo(Description description) {
                 description.appendText("Child at position " + position + " in parent ");
@@ -160,13 +160,15 @@ public class EspressoDeleteTrackTest {
     }
 
     public static Matcher<View> withListSize (final int size) {
-        return new TypeSafeMatcher<View> () {
-            @Override public boolean matchesSafely (final View view) {
-                return ((ListView) view).getCount () == size;
+        return new TypeSafeMatcher<>() {
+            @Override
+            public boolean matchesSafely(final View view) {
+                return ((ListView) view).getCount() == size;
             }
 
-            @Override public void describeTo (final Description description) {
-                description.appendText ("ListView should have " + size + " items");
+            @Override
+            public void describeTo(final Description description) {
+                description.appendText("ListView should have " + size + " items");
             }
         };
     }