Direct/Freedom config: Add targetStrategy as an alias of domainStrategy; Routing config: Remove domainMatcher, "linear" and type (#5027)

https://github.com/XTLS/Xray-core/pull/5006#issuecomment-3193547307

app/router/config.go

@@ -33,23 +33,12 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	conds := NewConditionChan()
 
 	if len(rr.Domain) > 0 {
-		switch rr.DomainMatcher {
-		case "linear":
-			matcher, err := NewDomainMatcher(rr.Domain)
-			if err != nil {
-				return nil, errors.New("failed to build domain condition").Base(err)
-			}
-			conds.Add(matcher)
-		case "mph", "hybrid":
-			fallthrough
-		default:
-			matcher, err := NewMphMatcherGroup(rr.Domain)
-			if err != nil {
-				return nil, errors.New("failed to build domain condition with MphDomainMatcher").Base(err)
-			}
-			errors.LogDebug(context.Background(), "MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)")
-			conds.Add(matcher)
+		matcher, err := NewMphMatcherGroup(rr.Domain)
+		if err != nil {
+			return nil, errors.New("failed to build domain condition with MphDomainMatcher").Base(err)
 		}
+		errors.LogDebug(context.Background(), "MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)")
+		conds.Add(matcher)
 	}
 
 	if len(rr.UserEmail) > 0 {