Add ability to delete a token (#4235)

Fix #4234

routers/api/v1/api.go

@@ -302,6 +302,7 @@ func RegisterRoutes(m *macaron.Macaron) {
 				m.Group("/tokens", func() {
 					m.Combo("").Get(user.ListAccessTokens).
 						Post(bind(api.CreateAccessTokenOption{}), user.CreateAccessToken)
+					m.Combo("/:id").Delete(user.DeleteAccessToken)
 				}, reqBasicAuth())
 			})
 		})