diff --git a/pkg/services/user/userimpl/store.go b/pkg/services/user/userimpl/store.go
index 76a12396390..dccc3145728 100644
--- a/pkg/services/user/userimpl/store.go
+++ b/pkg/services/user/userimpl/store.go
@@ -24,7 +24,6 @@ type store interface {
 	GetByEmail(context.Context, *user.GetUserByEmailQuery) (*user.User, error)
 	Delete(context.Context, int64) error
 	LoginConflict(ctx context.Context, login, email string) error
-	CaseInsensitiveLoginConflict(context.Context, string, string) error
 	Update(context.Context, *user.UpdateUserCommand) error
 	UpdateLastSeenAt(context.Context, *user.UpdateUserLastSeenAtCommand) error
 	GetSignedInUser(context.Context, *user.GetSignedInUserQuery) (*user.SignedInUser, error)
@@ -114,22 +113,6 @@ func (ss *sqlStore) notServiceAccountFilter() string {
 		ss.dialect.BooleanStr(false))
 }
 
-func (ss *sqlStore) CaseInsensitiveLoginConflict(ctx context.Context, login, email string) error {
-	users := make([]user.User, 0)
-	err := ss.db.WithDbSession(ctx, func(sess *db.Session) error {
-		if err := sess.Where("LOWER(email)=LOWER(?) OR LOWER(login)=LOWER(?)",
-			email, login).Find(&users); err != nil {
-			return err
-		}
-
-		if len(users) > 1 {
-			return &user.ErrCaseInsensitiveLoginConflict{Users: users}
-		}
-		return nil
-	})
-	return err
-}
-
 func (ss *sqlStore) GetByLogin(ctx context.Context, query *user.GetUserByLoginQuery) (*user.User, error) {
 	// enforcement of lowercase due to forcement of caseinsensitive login
 	query.LoginOrEmail = strings.ToLower(query.LoginOrEmail)
diff --git a/pkg/services/user/userimpl/user_test.go b/pkg/services/user/userimpl/user_test.go
index 304932d65b6..346f8545267 100644
--- a/pkg/services/user/userimpl/user_test.go
+++ b/pkg/services/user/userimpl/user_test.go
@@ -290,10 +290,6 @@ func (f *FakeUserStore) GetByID(context.Context, int64) (*user.User, error) {
 	return f.ExpectedUser, f.ExpectedError
 }
 
-func (f *FakeUserStore) CaseInsensitiveLoginConflict(context.Context, string, string) error {
-	return f.ExpectedError
-}
-
 func (f *FakeUserStore) LoginConflict(context.Context, string, string) error {
 	return f.ExpectedError
 }