Stop redirecting /tea_times/123 links on /tea_times page for signed out users

[ankitshah811]

The link to a tea time via /tea_times for users that aren't signed in should be the same as it is for users who are signed in

Present behavior:

• When user is signed out, links to any specific tea time via /tea_times look like this: http://www.teawithstrangers.com/signup?city_id=1&redirect_to_tt=2729
• When user is signed in, links to any specific tea time via /tea_times look like this: http://www.teawithstrangers.com/tea_times/2729
• When user is signed out, a specific tea time page (e.g. /tea_times/123) displays a button to sign up for TWS
• When user is signed in, a specific tea time page (e.g. /tea_times/123) displays a form that is populated with user info and button to register for tea time

Desired behavior:

• Whether user is signed in or signed out, link to any specific tea time via /tea_times go straight to the tea time page (no redirect)
• On the specific tea time page /tea_times/123 page, users who are signed out and users that are signed in should experience the existing behavior (i.e. no change)