Bump min picture to 7+ months ago

Delete lots of support code, including need for SkXfermode objects
which are no longer used anywhere else.

Bug: skia:
Change-Id: Id6b7ef0f529691041ff2b206c35e336e8a4c974d
Reviewed-on: https://skia-review.googlesource.com/19059
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/utils/SkBitmapSourceDeserializer.cpp b/src/utils/SkBitmapSourceDeserializer.cpp
index 1f8cc1c..ccc95ee 100644
--- a/src/utils/SkBitmapSourceDeserializer.cpp
+++ b/src/utils/SkBitmapSourceDeserializer.cpp
@@ -14,12 +14,7 @@
 #include "SkReadBuffer.h"
 
 sk_sp<SkFlattenable> SkBitmapSourceDeserializer::CreateProc(SkReadBuffer& buffer) {
-    SkFilterQuality filterQuality;
-    if (buffer.isVersionLT(SkReadBuffer::kBitmapSourceFilterQuality_Version)) {
-        filterQuality = kHigh_SkFilterQuality;
-    } else {
-        filterQuality = (SkFilterQuality)buffer.readInt();
-    }
+    SkFilterQuality filterQuality = (SkFilterQuality)buffer.readInt();
     SkRect src, dst;
     buffer.readRect(&src);
     buffer.readRect(&dst);