Fix colorType/alphaType checks in SkCodec

src/codec/SkCodec.cpp

Index: src/codec/SkCodec.cpp
diff --git a/src/codec/SkCodec.cpp b/src/codec/SkCodec.cpp
index 0da36bb17182ad298060ee110911d6d288dd925d..bb7b26529b9af8fe7c106818e5514c47617cdf76 100644
--- a/src/codec/SkCodec.cpp
+++ b/src/codec/SkCodec.cpp
@@ -162,15 +162,6 @@ SkCodec::Result SkCodec::getPixels(const SkImageInfo& info, void* pixels, size_t
         ctable = nullptr;
     }
 
-    {
-        SkAlphaType canonical;
-        if (!SkColorTypeValidateAlphaType(info.colorType(), info.alphaType(), &canonical)
-            || canonical != info.alphaType())
-        {
-            return kInvalidConversion;
-        }
-    }
-
     if (!this->rewindIfNeeded()) {
         return kCouldNotRewind;
     }