8210732: remove jdk.testlibrary.Utils

...t/jtreg/runtime/Dictionary/ProtectionDomainCacheTest.java

test/jdk/com/sun/jdi/BadHandshakeTest.java

test/jdk/com/sun/jdi/BasicJDWPConnectionTest.java

test/jdk/com/sun/jdi/DoubleAgentTest.java

test/jdk/com/sun/jdi/ExclusiveBind.java

test/jdk/com/sun/tools/attach/RunnerUtil.java

test/jdk/com/sun/tools/attach/StartManagementAgent.java

...tatransfer/ClipboardInterVMTest/ClipboardInterVMTest.java

...k/java/lang/ClassLoader/forNameLeak/ClassForNameLeak.java

test/jdk/java/lang/Thread/ThreadStateController.java

...java/lang/instrument/PremainClass/NoPremainAgentTest.java

...k/java/lang/instrument/PremainClass/PremainClassTest.java

...lang/instrument/PremainClass/ZeroArgPremainAgentTest.java

test/jdk/java/lang/invoke/LFCaching/LambdaFormTestCase.java

...dk/java/lang/invoke/MethodHandles/CatchExceptionTest.java

test/jdk/java/lang/invoke/MethodHandlesAsCollectorTest.java

test/jdk/java/lang/invoke/MethodHandlesCastFailureTest.java

test/jdk/java/lang/invoke/MethodHandlesGeneralTest.java

...dk/java/lang/invoke/MethodHandlesInsertArgumentsTest.java

test/jdk/java/lang/invoke/MethodHandlesInvokersTest.java