Removing old signup team API (#4950)

client/client.jsx

@@ -446,18 +446,6 @@ export default class Client {
  end(this.handleResponse.bind(this, 'exportTeam', success, error));
  }
 
- signupTeam(email, success, error) {
- request.
- post(`${this.getTeamsRoute()}/signup`).
- set(this.defaultHeaders).
- type('application/json').
- accept('application/json').
- send({email}).
- end(this.handleResponse.bind(this, 'signupTeam', success, error));
-
- this.track('api', 'api_teams_signup');
- }
-
  adminResetMfa(userId, success, error) {
  const data = {};
  data.user_id = userId;

tests/client_team.test.jsx

@@ -22,22 +22,6 @@ describe('Client.Team', function() {
  });
  });
 
- it('signupTeam', function(done) {
- var client = TestHelper.createClient();
- var email = TestHelper.fakeEmail();
-
- client.signupTeam(
- email,
- function(data) {
- assert.equal(data.email, email);
- done();
- },
- function(err) {
- done(new Error(err.message));
- }
- );
- });
-
  it('createTeam', function(done) {
  var client = TestHelper.createClient();
  var team = TestHelper.fakeTeam();