Revert "fix find port func"

This reverts commit eac2951.

Author: rmorshea

src/idom/server/utils.py

@@ -1,10 +1,9 @@
 import asyncio
-import errno
-import socket
 import time
 from contextlib import closing
 from functools import wraps
 from importlib import import_module
+from socket import socket
 from threading import Event, Thread
 from typing import Any, Callable, List, Optional, TypeVar, cast
 
@@ -87,15 +86,13 @@ def find_builtin_server_type(type_name: str) -> ServerFactory[Any, Any]:
 def find_available_port(host: str, port_min: int = 8000, port_max: int = 9000) -> int:
     """Get a port that's available for the given host and port range"""
     for port in range(port_min, port_max):
-        with closing(socket.socket()) as sock:
-            sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        with closing(socket()) as sock:
             try:
                 sock.bind((host, port))
-            except socket.error as error:
-                if error.errno != errno.EADDRINUSE:
-                    raise
+            except OSError:
+                pass
             else:
                 return port
     raise RuntimeError(
-        f"Host {host!r} has no available port in range {port_min}-{port_max}"
+        f"Host {host!r} has no available port in range {port_max}-{port_max}"
     )