ART: Remove stale cutils includes

These haven't been used for a long time.

Test: mmma art
Change-Id: I7a8ff2516714a884a5c02679ca96aa222af169ac
diff --git a/runtime/gc/heap.cc b/runtime/gc/heap.cc
index 8e3bbde..58becb1 100644
--- a/runtime/gc/heap.cc
+++ b/runtime/gc/heap.cc
@@ -37,7 +37,6 @@
 #include "base/systrace.h"
 #include "base/time_utils.h"
 #include "common_throws.h"
-#include "cutils/sched_policy.h"
 #include "debugger.h"
 #include "dex/dex_file-inl.h"
 #include "entrypoints/quick/quick_alloc_entrypoints.h"
diff --git a/runtime/hprof/hprof.cc b/runtime/hprof/hprof.cc
index 7bd5a6a..c9e8426 100644
--- a/runtime/hprof/hprof.cc
+++ b/runtime/hprof/hprof.cc
@@ -24,7 +24,6 @@
 
 #include "hprof.h"
 
-#include <cutils/open_memstream.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>