Remove min texture size support

src/core/SkImageCacherator.cpp

Index: src/core/SkImageCacherator.cpp
diff --git a/src/core/SkImageCacherator.cpp b/src/core/SkImageCacherator.cpp
index 71afc0e68aa7a29608e82ebcc887b10f03f5d10e..bf9bea0af4217af1747dcb883a79e368f09e02a3 100644
--- a/src/core/SkImageCacherator.cpp
+++ b/src/core/SkImageCacherator.cpp
@@ -287,8 +287,6 @@ public:
     }
 
 protected:
-    GrTexture* peekOriginalTexture() override { return nullptr; }
-
     // TODO: consider overriding this, for the case where the underlying generator might be
     //       able to efficiently produce a "stretched" texture natively (e.g. picture-backed)
     //    GrTexture* generateTextureForParams(GrContext*, const SkGrStretch&) override;
@@ -309,10 +307,6 @@ protected:
         }
     }
 
-    bool getROBitmap(SkBitmap* bitmap) override {
-        return fCacher->lockAsBitmap(bitmap, fClient);
-    }
-
 private:
     SkImageCacherator*      fCacher;
     const SkImage*          fClient;