Revert "ART: Start RuntimeCallbacks"

jdwp tests failing with:
    STDERR> dalvikvm32 E 01-18 23:14:50 12180 12198 thread-inl.h:137] holding "runtime callbacks lock" at point where thread suspension is expected

Bug: 31684920

This reverts commit 13093d455b8266338fd713b04261c58e9dc2b164.

Change-Id: I94e4154e273d006eecdd485607dcfd96392d6a00

1 files changed, 0 insertions, 6 deletions

diff --git a/runtime/base/mutex.cc b/runtime/base/mutex.cc
index edb58c4eb7..9116097604 100644
--- a/runtime/base/mutex.cc
+++ b/runtime/base/mutex.cc
@@ -61,7 +61,6 @@ Mutex* Locks::reference_queue_finalizer_references_lock_ = nullptr;
 Mutex* Locks::reference_queue_phantom_references_lock_ = nullptr;
 Mutex* Locks::reference_queue_soft_references_lock_ = nullptr;
 Mutex* Locks::reference_queue_weak_references_lock_ = nullptr;
-ReaderWriterMutex* Locks::runtime_callbacks_lock_ = nullptr;
 Mutex* Locks::runtime_shutdown_lock_ = nullptr;
 Mutex* Locks::cha_lock_ = nullptr;
 Mutex* Locks::thread_list_lock_ = nullptr;
@@ -968,7 +967,6 @@ void Locks::Init() {
     DCHECK(trace_lock_ != nullptr);
     DCHECK(unexpected_signal_lock_ != nullptr);
     DCHECK(dex_lock_ != nullptr);
-    DCHECK(runtime_callbacks_lock_ != nullptr);
   } else {
     // Create global locks in level order from highest lock level to lowest.
     LockLevel current_lock_level = kInstrumentEntrypointsLock;
@@ -1000,10 +998,6 @@ void Locks::Init() {
     DCHECK(runtime_shutdown_lock_ == nullptr);
     runtime_shutdown_lock_ = new Mutex("runtime shutdown lock", current_lock_level);
 
-    UPDATE_CURRENT_LOCK_LEVEL(kRuntimeCallbacksLock);
-    DCHECK(runtime_callbacks_lock_ == nullptr);
-    runtime_callbacks_lock_ = new ReaderWriterMutex("runtime callbacks lock", current_lock_level);
-
     UPDATE_CURRENT_LOCK_LEVEL(kProfilerLock);
     DCHECK(profiler_lock_ == nullptr);
     profiler_lock_ = new Mutex("profiler lock", current_lock_level);