Revert "Initial check-in of an optimizing compiler."

g++ warnings turned into errors.

This reverts commit 68a5fefa90f03fdf5a238ac85c9439c6b03eae96.

Change-Id: I09bb95d9cc13764ca8a266c41af04801a34b9fd0
diff --git a/compiler/driver/compiler_driver.h b/compiler/driver/compiler_driver.h
index da4b69d..a9e029d 100644
--- a/compiler/driver/compiler_driver.h
+++ b/compiler/driver/compiler_driver.h
@@ -28,6 +28,7 @@
 #include "compiled_method.h"
 #include "compiler_backend.h"
 #include "dex_file.h"
+#include "dex/arena_allocator.h"
 #include "instruction_set.h"
 #include "invoke_type.h"
 #include "method_reference.h"
@@ -35,7 +36,6 @@
 #include "runtime.h"
 #include "safe_map.h"
 #include "thread_pool.h"
-#include "utils/arena_allocator.h"
 #include "utils/dedupe_set.h"
 
 namespace art {