Remove empty line after copyright text

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=163186057

extensions/cronet/src/androidTest/java/com/google/android/exoplayer2/ext/cronet/ByteArrayUploadDataProviderTest.java

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.google.android.exoplayer2.ext.cronet;
 
 import static org.junit.Assert.assertArrayEquals;

extensions/cronet/src/androidTest/java/com/google/android/exoplayer2/ext/cronet/CronetDataSourceTest.java

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.google.android.exoplayer2.ext.cronet;
 
 import static org.junit.Assert.assertArrayEquals;

extensions/mediasession/src/main/java/com/google/android/exoplayer2/ext/mediasession/RepeatModeActionProvider.java

@@ -14,7 +14,6 @@ package com.google.android.exoplayer2.ext.mediasession;
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 import android.content.Context;
 import android.os.Bundle;
 import android.support.v4.media.session.PlaybackStateCompat;

library/core/src/androidTest/java/com/google/android/exoplayer2/drm/OfflineLicenseHelperTest.java

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.google.android.exoplayer2.drm;
 
 import static org.mockito.Matchers.any;

library/core/src/androidTest/java/com/google/android/exoplayer2/util/AtomicFileTest.java

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.google.android.exoplayer2.util;
 
 import android.test.InstrumentationTestCase;

library/core/src/main/java/com/google/android/exoplayer2/drm/OfflineLicenseHelper.java

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.google.android.exoplayer2.drm;
 
 import android.media.MediaDrm;

library/core/src/main/java/com/google/android/exoplayer2/util/AtomicFile.java

@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.google.android.exoplayer2.util;
 
 import android.support.annotation.NonNull;