Revert of Use transfer buffer for BatchAtlas texture copies

src/gpu/gl/GrGLBuffer.cpp

Index: src/gpu/gl/GrGLBuffer.cpp
diff --git a/src/gpu/gl/GrGLBuffer.cpp b/src/gpu/gl/GrGLBuffer.cpp
index 787445e5589fff30949519419e6babcd97328e2b..24fd59267df44934a4d6afdd209b80c2c393bf26 100644
--- a/src/gpu/gl/GrGLBuffer.cpp
+++ b/src/gpu/gl/GrGLBuffer.cpp
@@ -30,12 +30,6 @@
 
 GrGLBuffer* GrGLBuffer::Create(GrGLGpu* gpu, size_t size, GrBufferType intendedType,
                                GrAccessPattern accessPattern, const void* data) {
-    if (gpu->glCaps().transferBufferType() == GrGLCaps::kNone_TransferBufferType &&
-        (kXferCpuToGpu_GrBufferType == intendedType ||
-        kXferGpuToCpu_GrBufferType == intendedType)) {
-        return nullptr;
-    }
-
     bool cpuBacked = gpu->glCaps().useNonVBOVertexAndIndexDynamicData() &&
                      GrBufferTypeIsVertexOrIndex(intendedType) &&
                      kDynamic_GrAccessPattern == accessPattern;