Revert CC related changes.

Revert: "X86_64: Add allocation entrypoint switching for CC is_marking"
Revert: "Fix mips build in InitEntryPoints"
Revert: "Fix mac build in ResetQuickAllocEntryPoints"

Test: test-art-target-run-test
Change-Id: If38d44edf8c5def5c4d8c9419e4af0cd8d3be724
diff --git a/runtime/instrumentation.cc b/runtime/instrumentation.cc
index 870d1ae..d4c322e 100644
--- a/runtime/instrumentation.cc
+++ b/runtime/instrumentation.cc
@@ -630,7 +630,7 @@
 }
 
 static void ResetQuickAllocEntryPointsForThread(Thread* thread, void* arg ATTRIBUTE_UNUSED) {
-  thread->ResetQuickAllocEntryPointsForThread(kUseReadBarrier && thread->GetIsGcMarking());
+  thread->ResetQuickAllocEntryPointsForThread();
 }
 
 void Instrumentation::SetEntrypointsInstrumented(bool instrumented) {