[#659584CC22BB0E0B94C5CDD3BD47E2CE818AA651]
Remove the query
url_base& remove_query() noexcept;
If a query is present, it is removed. An empty query is distinct from having no query.
assert( url( "http://www.example.com?id=42" ).remove_query().buffer() == "http://www.example.com" );
this->has_query() == false && this->params().empty()
Throws nothing.
query = *( pchar / "/" / "?" )
query-param = key [ "=" value ]
query-params = [ query-param ] *( "&" query-param )