Remove all (incorrect) casts in abs(long long).
Remove all (incorrect) casts in abs(long long).

da-woods/cython,scoder/cython,cython/cython,da-woods/cython,scoder/cython,scoder/cython,da-woods/cython,cython/cython,cython/cython,cython/cython,scoder/cython,da-woods/cython