Revert "new virtuals for canvas ctm"

This reverts commit 2076b04d153fe26b35fa98c787931f40de8af003.

Reason for revert: speculative: breaking google3 flutter scuba?

Original change's description:
> new virtuals for canvas ctm
> 
> 1. Feature: Clients need to override didConcat44() (new data)
> 2. Perf: Clients need to override didTranslate (and now didScale) so our
>          default impls can be empty.
> 
> Need SK_SUPPORT_LEGACY_CANVAS_MATRIX_VIRTUALS flag to stage this in
> clients (anyone who subclasses SkCanvas)
> 
> Before (with flag)
>     120.87  	canvas_matrix_4x4	8888
>     108.10 ?	canvas_matrix_3x3	8888
>     108.13 ?	canvas_matrix_2x3	8888
>     141.54  	canvas_matrix_scale	8888
>     128.04  	canvas_matrix_trans	8888
> 
> After (without the flag)
>     ...
>      90.79  	canvas_matrix_scale	8888
>      94.51  	canvas_matrix_trans	8888
> 
> bug: skia:9768
> 
> Change-Id: I6f500138dd6b2b24754dc065c650d0bd3c341540
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263349
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>

TBR=fmalita@chromium.org,reed@google.com

Change-Id: I9c2e39ea0aa2b19d40eb6454c233258ab7f35829
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263564
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
20 files changed