Remove httpx exception checks in test package

We've moved away from the built-in test server
in favor of pushing users towards using the CLI.
The CLI sets environment variables, so there's
no chance of user error which is what these messages
were designed to help with.

Eliminating the httpx dependency means we can adapt
the test package to other web frameworks/clients.

Author: chriso

src/dispatch/test/client.py

@@ -2,7 +2,6 @@
 from typing import Mapping, Optional, Protocol, Union
 
 import grpc
-import httpx
 
 from dispatch.sdk.v1 import function_pb2 as function_pb
 from dispatch.sdk.v1 import function_pb2_grpc as function_grpc

src/dispatch/test/service.py

@@ -8,7 +8,6 @@
 from typing import Dict, List, Optional, Set, Tuple
 
 import grpc
-import httpx
 from typing_extensions import TypeAlias
 
 import dispatch.sdk.v1.call_pb2 as call_pb
@@ -325,17 +324,6 @@ def _dispatch_continuously(self):
 
             try:
                 self.dispatch_calls()
-            except httpx.HTTPStatusError as e:
-                if e.response.status_code == 403:
-                    logger.error(
-                        "error dispatching function call to endpoint (403). Is the endpoint's DISPATCH_VERIFICATION_KEY correct?"
-                    )
-                else:
-                    logger.exception(e)
-            except httpx.ConnectError as e:
-                logger.error(
-                    "error connecting to the endpoint. Is it running and accessible from DISPATCH_ENDPOINT_URL?"
-                )
             except Exception as e:
                 logger.exception(e)