remove unused cimport (#18387)

Author: jbrockmendel

pandas/_libs/algos.pyx

@@ -20,7 +20,7 @@ from numpy cimport (ndarray,
                     NPY_FLOAT32, NPY_FLOAT64,
                     NPY_OBJECT,
                     int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t,
-                    uint32_t, uint64_t, float16_t, float32_t, float64_t,
+                    uint32_t, uint64_t, float32_t, float64_t,
                     double_t)
 
 

pandas/_libs/groupby.pyx

@@ -11,7 +11,7 @@ cnp.import_array()
 from numpy cimport (ndarray,
                     double_t,
                     int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t,
-                    uint32_t, uint64_t, float16_t, float32_t, float64_t)
+                    uint32_t, uint64_t, float32_t, float64_t)
 
 from libc.stdlib cimport malloc, free
 

pandas/_libs/join.pyx

@@ -10,7 +10,7 @@ np.import_array()
 
 from numpy cimport (ndarray,
                     int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t,
-                    uint32_t, uint64_t, float16_t, float32_t, float64_t)
+                    uint32_t, uint64_t, float32_t, float64_t)
 
 cdef double NaN = <double> np.NaN
 cdef double nan = NaN

pandas/_libs/reshape.pyx

@@ -10,7 +10,7 @@ np.import_array()
 
 from numpy cimport (ndarray,
                     int8_t, int16_t, int32_t, int64_t, uint8_t, uint16_t,
-                    uint32_t, uint64_t, float16_t, float32_t, float64_t)
+                    uint32_t, uint64_t, float32_t, float64_t)
 
 cdef double NaN = <double> np.NaN
 cdef double nan = NaN

pandas/_libs/sparse.pyx

@@ -1,5 +1,5 @@
 from numpy cimport (ndarray, uint8_t, int64_t, int32_t, int16_t, int8_t,
-                    float64_t, float32_t, float16_t)
+                    float64_t, float32_t)
 cimport numpy as np
 
 cimport cython