Revert of XPS, DM: add SkDocument::CreateXPS

dm/DMSrcSink.h

Index: dm/DMSrcSink.h
diff --git a/dm/DMSrcSink.h b/dm/DMSrcSink.h
index faa333392282294faa413c8c8efc17b6320d8c0a..8cd92a6c12318e0283862b7f6bbd5fa2b5c8326c 100644
--- a/dm/DMSrcSink.h
+++ b/dm/DMSrcSink.h
@@ -119,15 +119,6 @@
     const char* fileExtension() const SK_OVERRIDE { return "pdf"; }
 };
 
-class XPSSink : public Sink {
-public:
-    XPSSink();
-
-    Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const SK_OVERRIDE;
-    int enclave() const SK_OVERRIDE { return kAnyThread_Enclave; }
-    const char* fileExtension() const SK_OVERRIDE { return "xps"; }
-};
-
 class RasterSink : public Sink {
 public:
     explicit RasterSink(SkColorType);