Remove unused import from ArchiveTest

This unnecessary import was introduced by 2ecc27d.

Change-Id: I5cb415de7e33428d9f95dfbe1e214ef24be9dad9
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.pgm.test/tst/org/eclipse/jgit/pgm/ArchiveTest.java

@@ -43,7 +43,6 @@
 package org.eclipse.jgit.pgm;
 
 import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
 import static org.junit.Assume.assumeNoException;