Remove Disconnect Search from search engines

Since it redirects to duckduckgo by default it is redundant.

added component::applications/tor browser in Legacy / Trac owner::tbb-team in Legacy / Trac priority::medium in Legacy / Trac resolution::duplicate in Legacy / Trac severity::normal in Legacy / Trac status::closed in Legacy / Trac type::defect in Legacy / Trac labels

two alternatives how can we use to replace disconnect https://www.ixquick.eu/ based in Yandex and Gigablast https://www.qwant.com/ based primarily in Bing

Trac:
Username: i139

Duplicate of legacy/trac#21363 (moved).

Trac:
Status: new to closed
Resolution: N/A to duplicate

closed

moved from legacy/trac#22234 (moved)

added Bug label and removed 1 deleted label

removed 1 deleted label