middleware.go
func (ms *MiddlewareStack) Clear() {
	ms.stack = []MiddlewareFunc{}
	ms.skips = map[string]bool{}
}
func (ms *MiddlewareStack) Clear() {
	ms.stack = []MiddlewareFunc{}
	ms.skips = map[string]bool{}
}
// Clear wipes out the current middleware stack for the App/Group,
// any middleware previously defined will be removed leaving an empty
// middleware stack.