Revert of Use transfer buffer for BatchAtlas texture copies

src/gpu/GrBatchFlushState.h

Index: src/gpu/GrBatchFlushState.h
diff --git a/src/gpu/GrBatchFlushState.h b/src/gpu/GrBatchFlushState.h
index ee7e3a0afae152d8eaf3133bc0a5113770e27ec0..0b2e2bd239450eb1584a69142b391a8c531cd43f 100644
--- a/src/gpu/GrBatchFlushState.h
+++ b/src/gpu/GrBatchFlushState.h
@@ -77,14 +77,7 @@
             return this->fGpu->writePixels(surface, left, top, width, height, config, buffer,
                                            rowBytes);
         };
-        GrDrawBatch::TransferPixelsFn tp = [this](GrTexture* texture,
-                                                int left, int top, int width, int height,
-                                                GrPixelConfig config, GrBuffer* buffer,
-                                                size_t offset, size_t rowBytes) -> bool {
-            return this->fGpu->transferPixels(texture, left, top, width, height, config, buffer,
-                                              offset, rowBytes);
-        };
-        upload(wp, tp);
+        upload(wp);
     }
 
     void putBackIndices(size_t indices) { fIndexPool.putBack(indices * sizeof(uint16_t)); }