Delete obsolete Assume test utility

spring-core/src/testFixtures/java/org/springframework/core/testfixture/Assume.java

@@ -1,46 +0,0 @@
-/*
- * Copyright 2002-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.core.testfixture;
-
-import org.apache.commons.logging.Log;
-
-import static org.junit.jupiter.api.Assumptions.assumeFalse;
-
-/**
- * Utility methods that allow JUnit tests to assume certain conditions hold
- * {@code true}. If an assumption fails, it means the test should be aborted.
- *
- * @author Rob Winch
- * @author Phillip Webb
- * @author Sam Brannen
- * @since 3.2
- * @see #notLogging(Log)
- * @see EnabledForTestGroups @EnabledForTestGroups
- */
-public abstract class Assume {
-
-	/**
-	 * Assume that the specified log is not set to Trace or Debug.
-	 * @param log the log to test
-	 * @throws org.opentest4j.TestAbortedException if the assumption fails
-	 */
-	public static void notLogging(Log log) {
-		assumeFalse(log.isTraceEnabled());
-		assumeFalse(log.isDebugEnabled());
-	}
-
-}