Remove GrTextureStorageAllocator. This was added from Chromium but never used and not expected to b…

src/gpu/GrTextureProvider.cpp

Index: src/gpu/GrTextureProvider.cpp
diff --git a/src/gpu/GrTextureProvider.cpp b/src/gpu/GrTextureProvider.cpp
index 3596ba6c12ce3287deb489a6d760d1344d4abc9b..1053ab272b2fe0c7c4ffd2c1064bb4aaa2e66186 100644
--- a/src/gpu/GrTextureProvider.cpp
+++ b/src/gpu/GrTextureProvider.cpp
@@ -50,8 +50,7 @@ GrTexture* GrTextureProvider::createMipMappedTexture(const GrSurfaceDesc& desc,
         !fGpu->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) {
         return nullptr;
     }
-    if (!GrPixelConfigIsCompressed(desc.fConfig) &&
-        !desc.fTextureStorageAllocator.fAllocateTextureStorage) {
+    if (!GrPixelConfigIsCompressed(desc.fConfig)) {
         if (mipLevelCount < 2) {
             static const uint32_t kFlags = kExact_ScratchTextureFlag |
                                            kNoCreate_ScratchTextureFlag;