Revert "Replace !this.session.socket check with !roomCode"
Revert "Replace !this.session.socket check with !roomCode"

This reverts commit 5b531f641e63346221b0d44f66192a6dc04695c1.

There was a small race condition with the player buttons incorrectly
showing when the "Connecting..." message was showing.

caleb531/connect-four