Drop a few unused imports in pgconn.pyx

diff --git a/psycopg_c/psycopg_c/pq/pgconn.pyx b/psycopg_c/psycopg_c/pq/pgconn.pyx
index 9d13eb3e787a761d2e21d5032bba3c43b58a8875..0d5ee0c1bd32f335acfc0c25203980a63a3bedbd 100644 (file)
--- a/psycopg_c/psycopg_c/pq/pgconn.pyx
+++ b/psycopg_c/psycopg_c/pq/pgconn.pyx
@@ -18,14 +18,12 @@ cdef extern from * nogil:
     pid_t getpid()
 
 from cpython.mem cimport PyMem_Malloc, PyMem_Free
-from cpython.bytes cimport PyBytes_AsString, PyBytes_AsStringAndSize
+from cpython.bytes cimport PyBytes_AsString
 from cpython.memoryview cimport PyMemoryView_FromObject
 
-import ctypes
 import logging
-from typing import Iterator
 
-from psycopg.pq import Format as PqFormat, PipelineStatus
+from psycopg.pq import Format as PqFormat
 from psycopg.pq.misc import PGnotify, connection_summary
 from psycopg_c.pq cimport PQBuffer