Remove an unused import from PackParserTest

Change-Id: I4182a1746b09dedab648e457d1ece6d667a01f12
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PackParserTest.java

@@ -47,7 +47,6 @@
 package org.eclipse.jgit.transport;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;