Remove AbstractSecurityWebSocketMessageBrokerConfigurer #8546

Job	Run time
Build (windows-latest, 17) / Build	3m 8s
Test Against Snapshots (21-ea, 21) / Test	2m 7s
Test Against Snapshots (17, 17) / Test	2m 34s
Build (ubuntu-latest, 17) / Build	2m 35s
Deploy Artifacts	0s
Deploy Docs	0s
Send Notification	7s
Deploy Schema	0s
Perform Release	0s
	10m 31s

Provide feedback