remove dead run_rules function

Summary: This code is no longer used.

Test Plan: built and `arc unit --everything`

Reviewers: wez

Reviewed By: wez

Differential Revision: https://phabricator.fb.com/D915989

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extra : rebase_source : 67692d66da1a3adbbab26bf5f08504f747feaa93
extra : amend_source : 4020d6589c7cd47bb54246d3c3d195716ca01f14