Deletes unused DecimalFormat class from core.expressions.tests

Change-Id: I3abe5ffb052ca656991b3b78ac8a0b8f73557546
Signed-off-by: Lars Vogel <Lars.Vogel@vogella.com>
diff --git a/tests/org.eclipse.core.expressions.tests/src/com/ibm/icu/text/DecimalFormat.java b/tests/org.eclipse.core.expressions.tests/src/com/ibm/icu/text/DecimalFormat.java
deleted file mode 100644
index fdad357..0000000
--- a/tests/org.eclipse.core.expressions.tests/src/com/ibm/icu/text/DecimalFormat.java
+++ /dev/null
@@ -1,29 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2013, 2015 IBM Corporation and others.
- *
- * This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License 2.0
- * which accompanies this distribution, and is available at
- * https://www.eclipse.org/legal/epl-2.0/
- *
- * SPDX-License-Identifier: EPL-2.0
- *
- * Contributors:
- *     IBM Corporation - initial API and implementation
- *******************************************************************************/
-package com.ibm.icu.text;
-
-/**
- * Used by the
- * {@link org.eclipse.core.internal.expressions.tests.ExpressionTestsPluginUnloading}
- * test.
- * <p>
- * <strong>Note:</strong> This class uses the 'com.ibm.icu.text' namespace for
- * test purposes only and does not copy or implement anything from ICU.
- * </p>
- */
-public class DecimalFormat implements Runnable {
-	@Override
-	public void run() {
-	}
-}