Remove USE_PQSORT and CHANGE_MV_SEARCH_ORDER

Remove the feature_score related code to simplify the code.
The feature_score is incorporated in get_local_structure and will
be integrated in later.
The current non_greedy_mv performances are
lowres: -0.239% midres: -0.569% hdres: -0.365%

Change-Id: Ida28bb1baff6932f1c28b24d371a35a1546fa7e9
2 files changed