finagle-base-http: Remove deprecated c.t.f.h.Methods
finagle-base-http: Remove deprecated c.t.f.h.Methods

Problem / Solution

`c.t.f.http.Methods` has been deprecated for about two years. We're removing them as our Scala API
works just fine in Java too.

JIRA Issues: CSL-7475

Differential Revision: https://phabricator.twitter.biz/D273235

twitter/finatra,twitter/finatra,twitter/finatra