Remove unused encodedString API on SkWriteBuffer/SkReadBuffer

src/core/SkWriteBuffer.cpp

Index: src/core/SkWriteBuffer.cpp
diff --git a/src/core/SkWriteBuffer.cpp b/src/core/SkWriteBuffer.cpp
index 2b35b67702d490aa7e4b7c4df3f53669321d0c96..5c65755e3e7014cce10d17e3a157f56996f29ca5 100644
--- a/src/core/SkWriteBuffer.cpp
+++ b/src/core/SkWriteBuffer.cpp
@@ -74,14 +74,6 @@ void SkWriteBuffer::writeString(const char* value) {
     fWriter.writeString(value);
 }
 
-void SkWriteBuffer::writeEncodedString(const void* value, size_t byteLength,
-                                              SkPaint::TextEncoding encoding) {
-    fWriter.writeInt(encoding);
-    fWriter.writeInt(SkToU32(byteLength));
-    fWriter.write(value, byteLength);
-}
-
-
 void SkWriteBuffer::writeColor(const SkColor& color) {
     fWriter.write32(color);
 }