git: openjdk/jdk11u-dev: 8217329: JTREG: Clean up, remove unused imports in gc folder

[Goetz Lindenmaier]

Changeset: a4080b94
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2023-10-26 18:21:13 +0000
URL:       https://git.openjdk.org/jdk11u-dev/commit/a4080b94a87f88a57eaa5e96ac5982148f3df63f

8217329: JTREG: Clean up, remove unused imports in gc folder

Reviewed-by: lucy
Backport-of: 2aa7590846aa6a8cba5fc4e67300bbb676961ade

! test/hotspot/jtreg/gc/TestAgeOutput.java
! test/hotspot/jtreg/gc/TestCardTablePageCommits.java
! test/hotspot/jtreg/gc/TestGenerationPerfCounter.java
! test/hotspot/jtreg/gc/TestMemoryMXBeansAndPoolsPresence.java
! test/hotspot/jtreg/gc/TestNumWorkerOutput.java
! test/hotspot/jtreg/gc/TestObjectAlignment.java
! test/hotspot/jtreg/gc/TestPolicyNamePerfCounter.java
! test/hotspot/jtreg/gc/arguments/AllocationHelper.java
! test/hotspot/jtreg/gc/arguments/TestSelectDefaultGC.java
! test/hotspot/jtreg/gc/arguments/TestShrinkHeapInSteps.java
! test/hotspot/jtreg/gc/class_unloading/TestCMSClassUnloadingEnabledHWM.java
! test/hotspot/jtreg/gc/class_unloading/TestG1ClassUnloadingHWM.java
! test/hotspot/jtreg/gc/concurrent_phase_control/CheckControl.java
! test/hotspot/jtreg/gc/epsilon/TestArraycopyCheckcast.java
! test/hotspot/jtreg/gc/epsilon/TestEpsilonEnabled.java
! test/hotspot/jtreg/gc/epsilon/TestMemoryMXBeans.java
! test/hotspot/jtreg/gc/g1/TestEagerReclaimHumongousRegionsLog.java
! test/hotspot/jtreg/gc/g1/TestLargePageUseForAuxMemory.java
! test/hotspot/jtreg/gc/g1/TestPLABOutput.java
! test/hotspot/jtreg/gc/g1/TestRemsetLoggingTools.java
! test/hotspot/jtreg/gc/g1/TestShrinkAuxiliaryData.java
! test/hotspot/jtreg/gc/g1/TestStringDeduplicationTools.java
! test/hotspot/jtreg/gc/g1/TestVerifyGCType.java
! test/hotspot/jtreg/gc/g1/mixedgc/TestOldGenCollectionUsage.java
! test/hotspot/jtreg/gc/logging/TestDeprecatedPrintFlags.java
! test/hotspot/jtreg/gc/logging/TestPrintReferences.java
! test/hotspot/jtreg/gc/metaspace/TestMetaspaceMemoryPool.java
! test/hotspot/jtreg/gc/metaspace/TestPerfCountersAndMemoryPools.java
! test/hotspot/jtreg/gc/stress/gclocker/TestGCLocker.java
! test/hotspot/jtreg/gc/stress/systemgc/TestSystemGC.java
! test/hotspot/jtreg/gc/whitebox/TestConcMarkCycleWB.java