Removed extra newlines from beginning of Java classes (#859)

The content of this PR was generated by styleguide#111.

wpilibj/src/test/java/edu/wpi/first/wpilibj/command/AbstractCommandTest.java

@@ -18,7 +18,6 @@ import static org.junit.Assert.fail;
  * The basic test for all {@link Command} tests.
  */
 public abstract class AbstractCommandTest {
-
   @Before
   public void commandSetup() {
     UnitTestUtility.setupMockBase();

wpilibj/src/test/java/edu/wpi/first/wpilibj/command/CommandParallelGroupTest.java

@@ -13,7 +13,6 @@ import org.junit.Test;
  * Ported from the old CrioTest Classes.
  */
 public class CommandParallelGroupTest extends AbstractCommandTest {
-
   /**
    * Simple Parallel Command Group With 2 commands one command terminates first.
    */

wpilibj/src/test/java/edu/wpi/first/wpilibj/command/CommandScheduleTest.java

@@ -13,7 +13,6 @@ import org.junit.Test;
  * Ported from the old CrioTest Classes.
  */
 public class CommandScheduleTest extends AbstractCommandTest {
-
   /**
    * Simple scheduling of a command and making sure the command is run and successfully terminates.
    */

wpilibj/src/test/java/edu/wpi/first/wpilibj/command/CommandTimeoutTest.java

@@ -13,7 +13,6 @@ import org.junit.Test;
  * Test a {@link Command} that times out.
  */
 public class CommandTimeoutTest extends AbstractCommandTest {
-
   /**
    * Command 2 second Timeout Test.
    */

wpilibj/src/test/java/edu/wpi/first/wpilibj/command/DefaultCommandTest.java

@@ -13,8 +13,6 @@ import org.junit.Test;
  * Tests the {@link Command} library.
  */
 public class DefaultCommandTest extends AbstractCommandTest {
-
-
   /**
    * Testing of default commands where the interrupting command ends itself.
    */