client: dev-tools: lib_linter: return compose down

- Don't return value of network removal
  * compose value is more appropriate
- Silence error warning
  * will complain if network is already in use

client/src/docker/lib/internal/dev-tools/lib_linter.bash

@@ -256,7 +256,10 @@ function lib_linter::__linter()
   popd 1>/dev/null || lib_utils::die_fatal
 
   lib_docker::__docker_compose down
-  docker network rm "$global_network" 1>/dev/null
+  local -r _ret=$?
+
+  docker network rm "$global_network" 2>/dev/null # Don't force, if in use
+  return $_ret
 }
 
 function lib_linter::linter()