refactor import sequence and fix typo

Signed-off-by: lmxia <[email protected]>

pkg/known/constants.go

@@ -3,19 +3,12 @@ package known
 import "time"
 
 const (
-	LabelValueManagedBy  = "mcs.nauti.io"
-	OriginName           = "origin-name"
-	OriginNamespace      = "origin-namespace"
-	LabelSourceNamespace = "submariner-io/originatingNamespace"
-	LabelSourceCluster   = "syncer.nauti.io/sourceCluster"
-	LabelSourceName      = "syncer.nauti.io/sourceName"
-	LabelOriginNameSpace = "syncer.nauti.io/sourceNamespace"
+	LabelValueManagedBy = "mcs.nauti.io"
 )
 
 const (
 	MaxNamespaceLength = 10
 	MaxNameLength      = 10
-	MaxClusternName    = 10
 )
 
 type RouteOperation int