Revert of In BUILD.public, enable SK_SUPPORT_LEGACY_HAIR_IGNORES_CAPS. (patchset #1 id:1 of https://codereview.chromium.org/1516863007/ )

Reason for revert:
The failing test has been blacklisted. The issue was not caused by this CL.

Original issue's description:
> In BUILD.public, enable SK_SUPPORT_LEGACY_HAIR_IGNORES_CAPS.
>
> Somehow https://codereview.chromium.org/1491843006 causes fills to change in one test.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/b6c77f6d62a62db3aec483e0a995ca30b9c97f0b

TBR=mtklein@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1530533003
diff --git a/BUILD.public b/BUILD.public
index 2bead79..d20eb23 100644
--- a/BUILD.public
+++ b/BUILD.public
@@ -385,8 +385,6 @@
 ]
 
 DEFINES_ALL = [
-    # https://codereview.chromium.org/1491843006 somehow breaks fills.
-    "SK_SUPPORT_LEGACY_HAIR_IGNORES_CAPS",
     # Chrome DEFINES.
     "SK_USE_FLOATBITS",
     "SK_USE_FREETYPE_EMBOLDEN",