api: replace commenterIsProviderUser

api/commenter.go

@@ -13,26 +13,3 @@ type commenter struct {
 	Provider     string    `json:"provider,omitempty"`
 	JoinDate     time.Time `json:"joinDate,omitempty"`
 }
-
-func commenterIsProviderUser(provider string, email string) (bool, error) {
-	if provider == "" || email == "" {
-		return false, errorMissingField
-	}
-
-	statement := `
-    SELECT EXISTS (
-      SELECT 1
-      FROM commenters
-      WHERE email=$1 AND provider=$2
-    );
-  `
-	row := db.QueryRow(statement, email, provider)
-
-	var exists bool
-	if err := row.Scan(&exists); err != nil {
-		logger.Errorf("error checking if provider user exists: %v", err)
-		return false, errorInternal
-	}
-
-	return exists, nil
-}