remove unused cimport of is_null_datetimelike (pandas-dev#17598)

jbrockmendel · alanbato · commit 49c8d19e90c2 · 2017-11-10T17:14:35.000-06:00
diff --git a/pandas/_libs/algos.pyx b/pandas/_libs/algos.pyx
@@ -33,7 +33,6 @@ from libc.math cimport sqrt, fabs
 from util cimport numeric, get_nat
 
 cimport lib
-from lib cimport is_null_datetimelike
 from pandas._libs import lib
 
 cdef int64_t iNaT = get_nat()
