Drop unneccessary @SuppressWarnings

Change-Id: I3a5b877efd3a58ad463c47bb663d073baea81dda
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/revplot/PlotCommitListTest.java

@@ -91,7 +91,6 @@ public class PlotCommitListTest extends RevWalkTestCase {
 		}
 	}
 
-	@SuppressWarnings("boxing")
 	@Test
 	public void testLinear() throws Exception {
 		final RevCommit a = commit();
@@ -112,7 +111,6 @@ public class PlotCommitListTest extends RevWalkTestCase {
 		test.noMoreCommits();
 	}
 
-	@SuppressWarnings("boxing")
 	@Test
 	public void testMerged() throws Exception {
 		final RevCommit a = commit();
@@ -135,7 +133,6 @@ public class PlotCommitListTest extends RevWalkTestCase {
 		test.noMoreCommits();
 	}
 
-	@SuppressWarnings("boxing")
 	@Test
 	public void testSideBranch() throws Exception {
 		final RevCommit a = commit();
@@ -157,7 +154,6 @@ public class PlotCommitListTest extends RevWalkTestCase {
 		test.noMoreCommits();
 	}
 
-	@SuppressWarnings("boxing")
 	@Test
 	public void test2SideBranches() throws Exception {
 		final RevCommit a = commit();
@@ -182,7 +178,6 @@ public class PlotCommitListTest extends RevWalkTestCase {
 		test.noMoreCommits();
 	}
 
-	@SuppressWarnings("boxing")
 	@Test
 	public void testBug300282_1() throws Exception {
 		final RevCommit a = commit();