remove announcement banner (#1795)

remove announcement banner [deploy site]

Author: AutomatedTester

website_and_docs/hugo.toml

@@ -164,7 +164,7 @@ plausible_analytics = true
 prism_syntax_highlighting = true
 
 # Enable announcement banner below navbar (Go to announcement-banner.html to change the message)
-announcement_banner = true
+announcement_banner = false
 
 # Enable Algolia DocSearch
 [params.search.algolia]