remove unused declarations

Bug: skia:
Change-Id: If8ca5e3d649dab3cf8b2bdb1cf072ff23cea9465
Reviewed-on: https://skia-review.googlesource.com/90026
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/src/core/SkWriteBuffer.h b/src/core/SkWriteBuffer.h
index 748254b..bd3864c 100644
--- a/src/core/SkWriteBuffer.h
+++ b/src/core/SkWriteBuffer.h
@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2011 Google Inc.
  *
@@ -21,7 +20,7 @@
 class SkPath;
 class SkRefCntSet;
 
-class SK_API SkWriteBuffer {
+class SkWriteBuffer {
 public:
     SkWriteBuffer() {}
     virtual ~SkWriteBuffer() {}
@@ -76,7 +75,7 @@
 /**
  * Concrete implementation that serializes to a flat binary blob.
  */
-class SK_API SkBinaryWriteBuffer : public SkWriteBuffer {
+class SkBinaryWriteBuffer : public SkWriteBuffer {
 public:
     enum Flags {
         kCrossProcess_Flag = 1 << 0,