fix: change to repository event types and removed unused code (#3386)

* fix: change to repository event types and removed unused code

* some fixes

* remove unused code

internal/auth/repository/user.go

@@ -2,17 +2,8 @@ package repository
 
 import (
 	"context"
-	"time"
-
-	"github.com/caos/zitadel/internal/user/model"
 )
 
 type UserRepository interface {
-	myUserRepo
-
 	UserSessionUserIDsByAgentID(ctx context.Context, agentID string) ([]string, error)
 }
-
-type myUserRepo interface {
-	MyUserChanges(ctx context.Context, lastSequence uint64, limit uint64, sortAscending bool, retention time.Duration) (*model.UserChanges, error)
-}