(fix) Duplicate messages on /sort page

Problem:
- The SpinnerController that is responsible for loading messages to display on the /sort page is called twice by both the state router and the html template.

Fix:
- Remove redundant call in html template

Testcase:
1)  Send a new message to test account
2)  Log into mail crunch for test account
3)  Verify new message is displayed only once on sorting page (http://localhost:3000/#/main/sort)