Revert "Widen internal API to support more complex YUV formats"

This reverts commit 0c583af06d50cf3a11a39f5804eccdeefd74fc02.

Reason for revert: DDL is failing

Original change's description:
> Widen internal API to support more complex YUV formats
> 
> Bug: skia:7901
> Change-Id: I46fec08711b8b483cf58ccae733e4dc2a9689231
> Reviewed-on: https://skia-review.googlesource.com/c/162280
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=egdaniel@google.com,jvanverth@google.com,bsalomon@google.com

Change-Id: Ibe3dd7abbce4a3b6afe74c565198dadc61a9f439
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:7901
Reviewed-on: https://skia-review.googlesource.com/c/163257
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
diff --git a/src/codec/SkCodecImageGenerator.h b/src/codec/SkCodecImageGenerator.h
index 9a64b7c..b9c9d3c 100644
--- a/src/codec/SkCodecImageGenerator.h
+++ b/src/codec/SkCodecImageGenerator.h
@@ -22,14 +22,12 @@
 protected:
     sk_sp<SkData> onRefEncodedData() override;
 
-    bool onGetPixels(
-        const SkImageInfo& info, void* pixels, size_t rowBytes, const Options& opts) override;
+    bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, const Options& opts)
+                     override;
 
-    bool onQueryYUVA8(
-        SkYUVSizeInfo*, SkYUVAIndex[SkYUVAIndex::kIndexCount], SkYUVColorSpace*) const override;
+    bool onQueryYUV8(SkYUVSizeInfo*, SkYUVColorSpace*) const override;
 
-    bool onGetYUVA8Planes(const SkYUVSizeInfo&, const SkYUVAIndex[SkYUVAIndex::kIndexCount],
-                          void* planes[]) override;
+    bool onGetYUV8Planes(const SkYUVSizeInfo&, void* planes[3]) override;
 
 private:
     /*