Remove freebuff waiting room flag #691

Job	Run time
build-freebuff	1m 30s
build-and-smoke-freebuff-windows	2m 31s
e2e-startup	1m 7s
e2e-agent-startup	2m 10s
e2e-version	1m 12s
e2e-slash-commands	55s
e2e-terminal-command	51s
e2e-help-command	1m 17s
e2e-ads-behavior	1m 4s
e2e-code-edit	56s
	13m 33s

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