[heap] Remove global handle marking barrier for MinorMC

This CL removes global handle marking barriers for MinorMC because
global handles should only be marked by MajorMC.

Bug: v8:13012
Change-Id: I23737f128c01eee75b2b1a19f47c4bcf6d043976
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3872270Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Leon Bettscheider <bettscheider@google.com>
Cr-Commit-Position: refs/heads/main@{#82976}

src/heap/incremental-marking.cc

@@ -360,7 +360,6 @@ void IncrementalMarking::StartMarkingMinor() {
   heap_->SetIsMarkingFlag(true);
 
   MarkingBarrier::ActivateAll(heap(), false, MarkingBarrierType::kMinor);
-  GlobalHandles::EnableMarkingBarrier(heap()->isolate());
 
   {
     TRACE_GC(heap()->tracer(), GCTracer::Scope::MINOR_MC_MARK_ROOTS);

src/heap/mark-compact.cc

@@ -6351,7 +6351,6 @@ void MinorMarkCompactCollector::MarkLiveObjects() {
 
   if (was_marked_incrementally) {
     MarkingBarrier::DeactivateAll(heap());
-    GlobalHandles::DisableMarkingBarrier(heap()->isolate());
   }
 }