Auto merge of #19319 - hgallagher1993:local_branch, r=jdm

Removed unused import in net/http_cache.rs

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`use http_loader::is_redirect_status;` was unused

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components/net/http_cache.rs

@@ -8,7 +8,6 @@
 //! and <http://tools.ietf.org/html/rfc7232>.
 
 use fetch::methods::DoneChannel;
-use http_loader::is_redirect_status;
 use hyper::header;
 use hyper::header::ContentType;
 use hyper::header::Headers;