[#00EAE4954C90B7A626D466A0004891B544BCD55A]
Erase params
std::size_t erase( pct_string_view key, ignore_case_param ic = = {}) noexcept;
All iterators are invalidated.
this->count( key, ic ) == 0
Linear in `this->url().encoded_query().size()`.
Exceptions thrown on invalid input.