Remove the move headers from flight

python/pyarrow/includes/libarrow_flight.pxd

@@ -486,9 +486,3 @@ cdef extern from "arrow/python/flight.h" namespace "arrow::py::flight" nogil:
     cdef CStatus SerializeBasicAuth" arrow::py::flight::SerializeBasicAuth"(
         CBasicAuth basic_auth,
         c_string* out)
-
-cdef extern from "<utility>" namespace "std":
-    # Work around https://github.com/cython/cython/issues/2169
-    unique_ptr[CFlightDataStream] move(unique_ptr[CFlightDataStream]) nogil
-    unique_ptr[CServerAuthHandler] move(unique_ptr[CServerAuthHandler]) nogil
-    unique_ptr[CClientAuthHandler] move(unique_ptr[CClientAuthHandler]) nogil

python/pyarrow/lib.pxd

@@ -19,17 +19,15 @@
 
 from __future__ import absolute_import
 
-from pyarrow.includes.common cimport *
-from pyarrow.includes.libarrow cimport *
-from pyarrow.includes.libarrow cimport CStatus
 from cpython cimport PyObject
 from libcpp cimport nullptr
 from libcpp.cast cimport dynamic_cast
+from pyarrow.includes.common cimport *
+from pyarrow.includes.libarrow cimport *
 
 # TODO(kszucs): DEPRECATE
 # ctypedef RandomAccessFile = CRandomAccessFile
 
-
 cdef extern from "Python.h":
     int PySlice_Check(object)