Use new Purge method of the database

core/base/databases.go

@@ -20,7 +20,6 @@ func registerDatabases() error {
 		Name:        "core",
 		Description: "Holds core data, such as settings and profiles",
 		StorageType: DefaultDatabaseStorageType,
-		PrimaryAPI:  "",
 	})
 	if err != nil {
 		return err
@@ -30,7 +29,6 @@ func registerDatabases() error {
 		Name:        "cache",
 		Description: "Cached data, such as Intelligence and DNS Records",
 		StorageType: DefaultDatabaseStorageType,
-		PrimaryAPI:  "",
 	})
 	if err != nil {
 		return err
@@ -40,7 +38,6 @@ func registerDatabases() error {
 	//   Name:        "history",
 	//   Description: "Historic event data",
 	//   StorageType: DefaultDatabaseStorageType,
-	//   PrimaryAPI:  "",
 	// })
 	// if err != nil {
 	//   return err

core/control.go

@@ -69,7 +69,6 @@ func registerControlDatabase() error {
 		Name:        "control",
 		Description: "Control Interface for the Portmaster",
 		StorageType: "injected",
-		PrimaryAPI:  "",
 	})
 	if err != nil {
 		return err