Revert "remove SK_SUPPORT_LEGACY_NESTED_HINTINGENUM from flutter"

This reverts commit 449cb53bd8e819429e7a86c7f00fbecbb6b0b42b.

Reason for revert: breaks fuchsia (needs to roll newer flutter)

Original change's description:
> remove SK_SUPPORT_LEGACY_NESTED_HINTINGENUM from flutter
> 
> Bug: skia:
> Change-Id: I52abdd614de5367906b934dd95faa13b1d4a8569
> Reviewed-on: https://skia-review.googlesource.com/c/171528
> Reviewed-by: Mike Reed <reed@google.com>

TBR=reed@google.com

Change-Id: Iabedd7ffdedb39de06ef8184ba5cab077051f9cf
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/171537
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed