[#C6810359DE9FD4F891D15D7B0EEA143B00BC32D0]
Remove the scheme
url& remove_scheme();
This function removes the scheme if it is present.
assert( url("http://www.example.com/index.htm" ).remove_scheme().buffer() == "//www.example.com/index.htm" );
this->has_scheme() == false && this->scheme_id() == scheme::none
Linear in `this->size()`.
Throws nothing.
URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]