Drop the libgit2 User-Agent testing from http_auth_offered
Drop the libgit2 User-Agent testing from http_auth_offered

vojtechkral/cargo,nipunn1313/cargo,nipunn1313/cargo,rustyhorde/cargo,tshepang/cargo,eminence/cargo,tshepang/cargo,rustyhorde/cargo,rust-lang/cargo,rust-lang/cargo,tsurai/cargo,rust-lang/cargo,nipunn1313/cargo,rustyhorde/cargo,eminence/cargo,tsurai/cargo,tshepang/cargo,rust-lang/cargo,tsurai/cargo,vojtechkral/cargo,vojtechkral/cargo,tsurai/cargo,nipunn1313/cargo,rustyhorde/cargo,eminence/cargo,eminence/cargo,tshepang/cargo,tsurai/cargo,vojtechkral/cargo