minor cleanups in newly privatized device headers

BUG=skia:

Change-Id: Id6ebd54f404b5f0869d96368b98957ac10a2083f
NOTREECHECKS=True
Reviewed-on: https://skia-review.googlesource.com/7369
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
diff --git a/src/core/SkBitmapDevice.h b/src/core/SkBitmapDevice.h
index 2d67271..1f72d8d 100644
--- a/src/core/SkBitmapDevice.h
+++ b/src/core/SkBitmapDevice.h
@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2013 Google Inc.
  *
@@ -19,7 +18,6 @@
 #include "SkScalar.h"
 #include "SkSize.h"
 #include "SkSurfaceProps.h"
-#include "SkTypes.h"
 
 class SkDraw;
 class SkImageFilterCache;
diff --git a/src/core/SkDevice.h b/src/core/SkDevice.h
index f38f7ea..ab0fdbd 100644
--- a/src/core/SkDevice.h
+++ b/src/core/SkDevice.h
@@ -14,7 +14,6 @@
 #include "SkSurfaceProps.h"
 
 class SkBitmap;
-class SkClipStack;
 class SkDraw;
 class SkDrawFilter;
 class SkImageFilterCache;
@@ -348,10 +347,6 @@
     const SkImageInfo    fInfo;
     const SkSurfaceProps fSurfaceProps;
 
-#ifdef SK_SUPPORT_LEGACY_ACCESSBITMAP
-    SkBitmap    fLegacyBitmap;
-#endif
-
     typedef SkRefCnt INHERITED;
 };