requirements_1.txt: Drop Cython, #147
requirements_1.txt: Drop Cython, #147

amitdo/ocropy,kba/ocropy,zuphilip/ocropy,stweil/ocropy,amitdo/ocropy,zuphilip/ocropy,amitdo/ocropy,stweil/ocropy,kba/ocropy,kba/ocropy,tmbdev/ocropy,zuphilip/ocropy,tmbdev/ocropy,stweil/ocropy,tmbdev/ocropy