Remove GrLayerHoister

This relies on https://codereview.chromium.org/1944013002/ (Add legacy flag to allow Skia to remove Ganesh layer hoister) landing first so as to not break the DEPS roll.

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1950523002

Review-Url: https://codereview.chromium.org/1950523002
diff --git a/bench/nanobench.cpp b/bench/nanobench.cpp
index 8633fa5..f7dc9c6 100644
--- a/bench/nanobench.cpp
+++ b/bench/nanobench.cpp
@@ -705,11 +705,10 @@
                         // The SKP we read off disk doesn't have a BBH.  Re-record so it grows one.
                         SkRTreeFactory factory;
                         SkPictureRecorder recorder;
-                        static const int kFlags = SkPictureRecorder::kComputeSaveLayerInfo_RecordFlag;
                         pic->playback(recorder.beginRecording(pic->cullRect().width(),
                                                               pic->cullRect().height(),
                                                               &factory,
-                                                              fUseMPDs[fCurrentUseMPD] ? kFlags : 0));
+                                                              0));
                         pic = recorder.finishRecordingAsPicture();
                     }
                     SkString name = SkOSPath::Basename(path.c_str());