Revert of DM: add a pixel check to serialize (patchset #4 id:60001 of https://codereview.chromium.org/1561993003/ )

Reason for revert:
breaks windows bots; additional windows specific failures need to be blacklisted

Original issue's description:
> DM: add a pixel check to serialize
>
> If we're running through serialize and then drawing into some raster target (e.g. serialize-8888 like we run on the bots), make sure the serialized version is identical to what we'd get if we just drew into the rest of the pipeline (i.e. 8888).
>
> Start by blacklisting all current failures.  This at least prevents further regression.
>
> BUG=skia:4095
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1561993003
>
> Committed: https://skia.googlesource.com/skia/+/6eb4e36a93ea695e7adb771ea9ac3326680a8e98

TBR=reed@google.com,mtklein@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4095

Review URL: https://codereview.chromium.org/1563923003

1 files changed, 0 insertions, 18 deletions

diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index 82962ff692..fa600ff4eb 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1084,15 +1084,6 @@ Error ViaRemote::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream, SkStr
 
 Error ViaSerialization::draw(
         const Src& src, SkBitmap* bitmap, SkWStream* stream, SkString* log) const {
-    // Draw the Src directly as a reference.
-    SkBitmap reference;
-    if (bitmap) {
-        Error err = fSink->draw(src, &reference, nullptr, log);
-        if (!err.isEmpty()) {
-            return err;
-        }
-    }
-
     // Record our Src into a picture.
     auto size = src.size();
     SkPictureRecorder recorder;
@@ -1111,15 +1102,6 @@ Error ViaSerialization::draw(
 
     return draw_to_canvas(fSink, bitmap, stream, log, size, [&](SkCanvas* canvas) {
         canvas->drawPicture(deserialized);
-        // Check against the reference if we have one.
-        if (bitmap) {
-            if (reference.getSize() != bitmap->getSize()) {
-                return "Serialized and direct have different dimensions.";
-            }
-            if (0 != memcmp(reference.getPixels(), bitmap->getPixels(), reference.getSize())) {
-                return "Serialized and direct have different pixels.";
-            }
-        }
         return "";
     });
 }