Authz: Add deprecation notice for settings viewers_can_edit and editors_can_admin (#100947)

* deprecate settings viewers_can_edit editors_can_admin

* add back variables for tests

* delete the files from cached in gti

pkg/setting/setting.go

@@ -294,8 +294,8 @@ type Cfg struct {
 	// DistributedCache
 	RemoteCacheOptions *RemoteCacheSettings
 
-	ViewersCanEdit  bool
-	EditorsCanAdmin bool
+	ViewersCanEdit  bool // Deprecated: no longer used
+	EditorsCanAdmin bool // Deprecated: no longer used
 
 	ApiKeyMaxSecondsToLive int64
 
@@ -1729,8 +1729,16 @@ func readUserSettings(iniFile *ini.File, cfg *Cfg) error {
 	cfg.ExternalUserMngAnalytics = users.Key("external_manage_analytics").MustBool(false)
 	cfg.ExternalUserMngAnalyticsParams = valueAsString(users, "external_manage_analytics_params", "")
 
+	// Deprecated
 	cfg.ViewersCanEdit = users.Key("viewers_can_edit").MustBool(false)
+	if cfg.ViewersCanEdit {
+		cfg.Logger.Warn("[Deprecated] The viewers_can_edit configuration setting is deprecated. Please upgrade viewers to editors.")
+	}
+	// Deprecated
 	cfg.EditorsCanAdmin = users.Key("editors_can_admin").MustBool(false)
+	if cfg.EditorsCanAdmin {
+		cfg.Logger.Warn("[Deprecated] The editors_can_admin configuration setting is deprecated. Please upgrade editors to admin.")
+	}
 
 	userInviteMaxLifetimeVal := valueAsString(users, "user_invite_max_lifetime_duration", "24h")
 	userInviteMaxLifetimeDuration, err := gtime.ParseDuration(userInviteMaxLifetimeVal)