Use 'final' and 'override' specifiers directly in ART.

Remove all uses of macros 'FINAL' and 'OVERRIDE' and replace them with
'final' and 'override' specifiers. Remove all definitions of these
macros as well, which were located in these files:
- libartbase/base/macros.h
- test/913-heaps/heaps.cc
- test/ti-agent/ti_macros.h

ART is now using C++14; the 'final' and 'override' specifiers have
been introduced in C++11.

Test: mmma art
Change-Id: I256c7758155a71a2940ef2574925a44076feeebf
diff --git a/openjdkjvmti/deopt_manager.h b/openjdkjvmti/deopt_manager.h
index 6e991de..d9f34a5 100644
--- a/openjdkjvmti/deopt_manager.h
+++ b/openjdkjvmti/deopt_manager.h
@@ -58,13 +58,13 @@
   explicit JvmtiMethodInspectionCallback(DeoptManager* manager) : manager_(manager) {}
 
   bool IsMethodBeingInspected(art::ArtMethod* method)
-      OVERRIDE REQUIRES_SHARED(art::Locks::mutator_lock_);
+      override REQUIRES_SHARED(art::Locks::mutator_lock_);
 
   bool IsMethodSafeToJit(art::ArtMethod* method)
-      OVERRIDE REQUIRES_SHARED(art::Locks::mutator_lock_);
+      override REQUIRES_SHARED(art::Locks::mutator_lock_);
 
   bool MethodNeedsDebugVersion(art::ArtMethod* method)
-      OVERRIDE REQUIRES_SHARED(art::Locks::mutator_lock_);
+      override REQUIRES_SHARED(art::Locks::mutator_lock_);
 
  private:
   DeoptManager* manager_;