Revert "Fix deprecation warning"

This reverts commit 8704739.

amqpstorm/io.py

@@ -266,19 +266,14 @@ def _ssl_wrap_socket(self, sock):
                 server_hostname=hostname
             )
         hostname = self._parameters['hostname']
-        if hasattr(ssl, 'PROTOCOL_TLS_CLIENT'):
-            protocol = ssl.PROTOCOL_TLS_CLIENT
-        else:
-            protocol = ssl.PROTOCOL_TLS
-        context = ssl.SSLContext(protocol)
-        context.check_hostname = self._parameters['ssl_options'].get(
-            'check_hostname', False
-        )
+        context = ssl.SSLContext(ssl.PROTOCOL_TLS)
         mode = self._parameters['ssl_options'].get('verify_mode', 'none')
         if mode.lower() == 'required':
             context.verify_mode = ssl.CERT_REQUIRED
         else:
             context.verify_mode = ssl.CERT_NONE
+        check = self._parameters['ssl_options'].get('check_hostname', False)
+        context.check_hostname = check
         context.load_default_certs()
         return context.wrap_socket(sock, do_handshake_on_connect=True,
                                    server_hostname=hostname)