Remove unnecessary @SuppressWarnings("null")

Change-Id: I5bddcdab2c5cc92622144a7b207bad90cb601609
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CommitOnlyTest.java

 		return f1;
 	}
 
-	@SuppressWarnings("null")
 	private void executeAndCheck_f1_1(final Git git, final int state)
 			throws Exception {
 		JGitInternalException exception = null;
 		assertEquals(expected_f3_idx(state), indexState(CONTENT));
 	}
 
-	@SuppressWarnings("null")
 	private void executeAndCheck_f1_1_f2_f14(final Git git, final int state)
 			throws Exception {
 		JGitInternalException exception = null;
 				+ expected_f3_idx(state), indexState(CONTENT));
 	}
 
-	@SuppressWarnings("null")
 	private void executeAndCheck_f1_2(final Git git, final int state)
 			throws Exception {
 		JGitInternalException exception = null;
 		executeAndCheck_f1_3(git, state);
 	}
 
-	@SuppressWarnings("null")
 	private void executeAndCheck_f1_6(final Git git, final int state)
 			throws Exception {
 		JGitInternalException exception = null;
 		executeAndCheck_f1_8(git, state);
 	}
 
-	@SuppressWarnings("null")
 	private void executeAndCheck_f1_12(final Git git, final int state)
 			throws Exception {
 		JGitInternalException exception = null;