Cleanup debugging code

Author: Galarzaa90

tibiapy/client.py

@@ -100,8 +100,7 @@ async def _post(self, url, data):
         try:
             async with self.session.post(url, data=data) as resp:
                 self._handle_status(resp.status)
-                var = await resp.text()
-                return var
+                return await resp.text()
         except aiohttp.ClientError as e:
             raise NetworkError("aiohttp.ClientError: %s" % e, e)