ART: Misc header cleanups

Move/remove arena allocator includes.

Test: mma art
Change-Id: If998569d96c791fc3d4aa93ca95672a4d4b5782c
diff --git a/compiler/driver/compiler_driver.cc b/compiler/driver/compiler_driver.cc
index 70c3f60..23be71f 100644
--- a/compiler/driver/compiler_driver.cc
+++ b/compiler/driver/compiler_driver.cc
@@ -28,6 +28,7 @@
 
 #include "art_field-inl.h"
 #include "art_method-inl.h"
+#include "base/arena_allocator.h"
 #include "base/array_ref.h"
 #include "base/bit_vector.h"
 #include "base/enums.h"