Remove ResponseRenderer::callExit() calls from auth plugins #6040

Job	Run time
Selenium (ChangePassword)	2m 16s
Selenium (CreateDropDatabase)	2m 55s
Selenium (CreateRemoveUser)	2m 48s
Selenium (Database/Events)	2m 56s
Selenium (Database/Operations)	3m 2s
Selenium (Database/Procedures)	3m 16s
Selenium (Database/Structure)	2m 26s
Selenium (Export)	3m 40s
Selenium (Import)	2m 57s
Selenium (Login)	2m 51s
Selenium (Normalization)	3m 5s
Selenium (ServerSettings)	3m 53s
Selenium (SqlQuery)	2m 42s
Selenium (Table/Browse)	3m 29s
Selenium (Table/Create)	2m 24s
Selenium (Table/Insert)	2m 31s
Selenium (Table/Operations)	3m 49s
Selenium (Table/Structure)	2m 45s
Selenium (Tracking)	3m 9s
Selenium (Triggers)	2m 52s
Selenium (Xss)	2m 15s
	1h 2m 1s

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