Auth: Remove oauth skip org role sync (#84972)

* remove oauth wide skip org role sync

* we are warning from config

* set it to false

* removed from config ini files and updated docs

pkg/services/authn/clients/oauth.go

@@ -162,9 +162,6 @@ func (c *OAuth) Authenticate(ctx context.Context, r *authn.Request) (*authn.Iden
 	}
 
 	orgRoles, isGrafanaAdmin, _ := getRoles(c.cfg, func() (org.RoleType, *bool, error) {
-		if c.cfg.OAuthSkipOrgRoleUpdateSync {
-			return "", nil, nil
-		}
 		return userInfo.Role, userInfo.IsGrafanaAdmin, nil
 	})