CLN: remove no-longer-sued reverse_ops (#34215)

Author: jbrockmendel

pandas/_libs/tslibs/np_datetime.pxd

@@ -53,8 +53,6 @@ cdef extern from "src/datetime/np_datetime.h":
                                            npy_datetimestruct *result) nogil
 
 
-cdef int reverse_ops[6]
-
 cdef bint cmp_scalar(int64_t lhs, int64_t rhs, int op) except -1
 
 cdef check_dts_bounds(npy_datetimestruct *dts)

pandas/_libs/tslibs/np_datetime.pyx

@@ -68,15 +68,6 @@ cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) nogil:
 # ----------------------------------------------------------------------
 # Comparison
 
-cdef int reverse_ops[6]
-
-reverse_ops[Py_LT] = Py_GT
-reverse_ops[Py_LE] = Py_GE
-reverse_ops[Py_EQ] = Py_EQ
-reverse_ops[Py_NE] = Py_NE
-reverse_ops[Py_GT] = Py_LT
-reverse_ops[Py_GE] = Py_LE
-
 
 cdef inline bint cmp_scalar(int64_t lhs, int64_t rhs, int op) except -1:
     """

pandas/_libs/tslibs/timedeltas.pyx

@@ -26,7 +26,7 @@ from pandas._libs.tslibs.base cimport ABCTimedelta, ABCTimestamp, is_tick_object
 from pandas._libs.tslibs.ccalendar cimport DAY_NANOS
 
 from pandas._libs.tslibs.np_datetime cimport (
-    cmp_scalar, reverse_ops, td64_to_tdstruct, pandas_timedeltastruct)
+    cmp_scalar, td64_to_tdstruct, pandas_timedeltastruct)
 
 from pandas._libs.tslibs.nattype cimport (
     checknull_with_nat,