Revert "Create cp_wrapper"

This reverts commit e4ccb144b638bca2648fd11055b8ee8ef285f503.
Revert "chi2logit"

This reverts commit a20954c99bb524ab051cd33e453a3e2207b00fbe.
Revert "cpc"

This reverts commit 43a42ff1103632235b42db957c527dcffa65cf8c.
Revert "ystep"

This reverts commit 8d94237113a9b854227cc0028455ec915cccf2ae.
Revert "trun"

This reverts commit 20ae96ecdd01a957b285ca169e4fe6ad65ef4b06.
Revert "rrc"

This reverts commit 2b9adbaddcf6f0f893fcf4946fffcdc9c8b5488b.
Revert "ks"

This reverts commit 8997d069e4b86112073227c34793f68ce96a32db.