Revert "Replace join text with spectate if user is finished contest; fixes #544" (#1473)
Revert "Replace join text with spectate if user is finished contest; fixes #544" (#1473)

This reverts commit 324bb185421665a739d58b6e9f87f7353bbb4c52.
DMOJ/site,DMOJ/site,DMOJ/site,DMOJ/site