Drop VectorMath's stride parameters since the call site always pass 1 as stride. This allows us to simplify the internal implementation in VectorMath.
Created attachment 410591 [details] Patch
Committed r268026: <https://trac.webkit.org/changeset/268026> All reviewed patches have been landed. Closing bug and clearing flags on attachment 410591 [details].
<rdar://problem/69981079>