remove unused device::eraseColor

include/core/SkDevice.h

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDevice_DEFINED
 #define SkDevice_DEFINED
 
@@ skipping 148 matching lines @@
      *  passed in).
      */
      virtual void setMatrixClip(const SkMatrix&, const SkRegion&,
                                 const SkClipStack&) {};
 
     /** Clears the entire device to the specified color (including alpha).
      *  Ignores the clip.
      */
     virtual void clear(SkColor color) = 0;
 
-    SK_ATTR_DEPRECATED("use clear() instead")
-    void eraseColor(SkColor eraseColor) { this->clear(eraseColor); }
-
     /** These are called inside the per-device-layer loop for each draw call.
      When these are called, we have already applied any saveLayer operations,
      and are handling any looping from the paint, and any effects from the
      DrawFilter.
      */
     virtual void drawPaint(const SkDraw&, const SkPaint& paint) = 0;
     virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode, size_t count,
                             const SkPoint[], const SkPaint& paint) = 0;
     virtual void drawRect(const SkDraw&, const SkRect& r,
                           const SkPaint& paint) = 0;
@@ skipping 216 matching lines @@
     SkDeviceProperties* fLeakyProperties;   // will always exist.
 
 #ifdef SK_DEBUG
     bool        fAttachedToCanvas;
 #endif
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif