Always pass expected_inquires dict

This saves some code.

Author: DemiMarie

splitgpg2/__init__.py

@@ -476,7 +476,7 @@ async def connect_agent(self) -> None:
             self.notify('connected')
 
         # wait for agent hello
-        await self.handle_agent_response()
+        await self.handle_agent_response({})
 
     def close(self, reason: str, log_level: int = logging.ERROR) -> None:
         self.log.log(log_level, '%s; Closing!', reason)
@@ -1043,8 +1043,7 @@ def agent_write(self, data: bytes) -> None:
         writer.write(data)
 
     async def handle_agent_response(self,
-            expected_inquires: Optional[Dict[bytes, 'ArgCallback']] = None) \
-                    -> bool:
+                                    expected_inquires: Dict[bytes, 'ArgCallback']) -> bool:
         """ Receive and handle one agent response. Return whether there are
         more expected """
         assert self.agent_reader is not None
@@ -1055,8 +1054,6 @@ async def handle_agent_response(self,
             while await self.agent_reader.read(1024):
                 pass
             return False
-        expected_inquires = (expected_inquires if expected_inquires is not None
-                             else {})
         # We generally consider the agent as trusted. But since the client can
         # determine part of the response we handle this here as untrusted.
         untrusted_line = await self.agent_reader.readline()