Fix monitor visit for class initializer

We do not hold class object's lock when invoking class initializer. Therefore
it is wrong to visit it when looking for monitors owned by a thread.

Bug: 17377924

(cherry picked from commit 6d06f1b34322d91226c9dcd61e53c2b6731f8bb6)

Change-Id: I9a18c421297608dc3109624111f9fea021a16d24
diff --git a/runtime/monitor.cc b/runtime/monitor.cc
index a87d7c1..6123934 100644
--- a/runtime/monitor.cc
+++ b/runtime/monitor.cc
@@ -965,12 +965,6 @@
     return;
   }
 
-  // <clinit> is another special case. The runtime holds the class lock while calling <clinit>.
-  if (m->IsClassInitializer()) {
-    callback(m->GetDeclaringClass(), callback_context);
-    // Fall through because there might be synchronization in the user code too.
-  }
-
   // Is there any reason to believe there's any synchronization in this method?
   const DexFile::CodeItem* code_item = m->GetCodeItem();
   CHECK(code_item != NULL) << PrettyMethod(m);