Revert "fix g3 by adding legacy flag"

This reverts commit 2dc31290273c8640c7532fe9081a5e08569e726a.

Reason for revert: google3 call-sites have now been updated.

Original change's description:
> fix g3 by adding legacy flag
> 
> Bug: skia:7554
> Change-Id: I0aa766f58719b29340e5b225c74781b9884f30f6
> Reviewed-on: https://skia-review.googlesource.com/150242
> Auto-Submit: Mike Reed <reed@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>

TBR=stephana@google.com,reed@google.com

Change-Id: Ie23c180767bc9be56cb01b83e5df7eaa830d8d82
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:7554
Reviewed-on: https://skia-review.googlesource.com/150125
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/public.bzl b/public.bzl
index ce74782..82502b4 100644
--- a/public.bzl
+++ b/public.bzl
@@ -602,7 +602,6 @@
         # Required for building dm.
         "GR_TEST_UTILS",
         # Staging flags for API changes
-        "SK_SUPPORT_LEGACY_ONDRAWTEXTONPATH",
         # Should remove after we update golden images
         "SK_WEBP_ENCODER_USE_DEFAULT_METHOD",
         # Experiment to diagnose image diffs in Google3