D377: simplemerge: add `filtereddata=False` to simplemerge()

[durin42 (Augie Fackler)]

durin42 added a comment.


  Also, timeless noticed https://phab.mercurial-scm.org/rHGabd66eb0889e3efaca4f960e0eacd719c18880dd, which reinforces my belief that we don't need contrib/simplemerge anymore.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D377

To: phillco, #hg-reviewers
Cc: durin42, mercurial-devel