Remove unnecessary failing test method

Method test006_readCaseInsensitive in TestConfig already does the
same thing, and doesn't require an OS specific test for the value being 
asserted.
This is additionally a fast fix for the failing JUnit test after 
change 3fe5276. 

Change-Id: I96d2794dbc7db55bdd0fbfcf675aabb15cc8419f
Signed-off-by: Stefan Lay <stefan.lay@sap.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/T0003_Basic.java

@@ -60,7 +60,6 @@ import org.eclipse.jgit.errors.IncorrectObjectTypeException;
 import org.eclipse.jgit.errors.MissingObjectException;
 import org.eclipse.jgit.lib.AnyObjectId;
 import org.eclipse.jgit.lib.CommitBuilder;
-import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.FileTreeEntry;
 import org.eclipse.jgit.lib.ObjectDatabase;
@@ -310,16 +309,6 @@ public class T0003_Basic extends SampleDataRepositoryTestCase {
 		assertTrue("Read-only " + o, !o.canWrite());
 	}
 
-	public void test005_ReadSimpleConfig() {
-		final Config c = db.getConfig();
-		assertNotNull(c);
-		assertEquals("0", c.getString("core", null, "repositoryformatversion"));
-		assertEquals("0", c.getString("CoRe", null, "REPOSITORYFoRmAtVeRsIoN"));
-		assertEquals("true", c.getString("core", null, "filemode"));
-		assertEquals("true", c.getString("cOrE", null, "fIlEModE"));
-		assertNull(c.getString("notavalue", null, "reallyNotAValue"));
-	}
-
 	public void test006_ReadUglyConfig() throws IOException,
 			ConfigInvalidException {
 		final File cfg = new File(db.getDirectory(), "config");