remove dead code used by the old cloog scheduler

remove dead code used by the old cloog scheduler

2015-10-05  Aditya Kumar  <aditya.k7@samsung.com>
                Sebastian Pop  <s.pop@samsung.com>

                * graphite-dependences.c (scop_get_transformed_schedule): Remove.
                (no_violations): Remove.
                (subtract_commutative_associative_deps): Remove.
                (compute_deps): Do not call subtract_commutative_associative_deps.
                (transform_is_safe): Remove.
                (graphite_legal_transform): Remove.
                * graphite-poly.h (graphite_legal_transform): Remove.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r228530