[rpc] Don't double-log attempt count on init failure.
The initialization logic uses a nested retry loop to establish a
connection with the RPC service. Don't log the inner retry count.
W0304 21:05:31.173238 connection.py:529] TimeoutError
Failed to connect to RPC service after 10.0 seconds(11 attempts
made) (attempt 3)
@@ -333,7 +333,6 @@ class ManagedConnection(Connection):
raise TimeoutError(
"Failed to connect to RPC service after "
f"{process_exit_max_seconds:.1f} seconds"
- f"({attempts} attempts made)"
)
super().__init__(channel, url, logger)
