refactor: remove redundant variable declarations in for loops (#637)

Signed-off-by: efcking <[email protected]>

Author: efcking

message/router.go

@@ -434,8 +434,6 @@ func (r *Router) RunHandlers(ctx context.Context) error {
 	r.logger.Info("Running router handlers", watermill.LogFields{"count": len(r.handlers)})
 
 	for name, h := range r.handlers {
-		name := name
-		h := h
 
 		if h.started {
 			continue