header.go
func (h *RequestHeader) Del(key string) {
	h.parseRawHeaders()
	k := getHeaderKeyBytes(&h.bufKV, key, h.disableNormalizing)
	h.del(k)
}
func (h *RequestHeader) Del(key string) {
	h.parseRawHeaders()
	k := getHeaderKeyBytes(&h.bufKV, key, h.disableNormalizing)
	h.del(k)
}
func ( h * RequestHeader ) Del ( key string ) { h . parseRawHeaders ( ) k := getHeaderKeyBytes ( & h . bufKV , key , h . disableNormalizing ) h . del ( k ) }
// Del deletes header with the given key.
Del deletes header with the given key .