deprecate embedded browser (#12163)

https://github.com/minio/console takes over the functionality for the
future object browser development

Signed-off-by: Harshavardhana <harsha@minio.io>

cmd/config/constants.go

@@ -29,7 +29,6 @@ const (
 	EnvRootUser     = "MINIO_ROOT_USER"
 	EnvRootPassword = "MINIO_ROOT_PASSWORD"
 
-	EnvBrowser    = "MINIO_BROWSER"
 	EnvDomain     = "MINIO_DOMAIN"
 	EnvRegionName = "MINIO_REGION_NAME"
 	EnvPublicIPs  = "MINIO_PUBLIC_IPS"