diff --git a/includes/utilities.php b/includes/utilities.php
index 7a846a4..52cca2b 100644
--- a/includes/utilities.php
+++ b/includes/utilities.php
@@ -104,30 +104,6 @@ function validateApiResponse($responseData) {
     }
 }
 
-/**
- * Prepare a PDO statement for checking if a given vault transaction already exists in the database.
- *
- * @param PDO $pdo The PDO instance to prepare the statement with
- *
- * @return PDOStatement The prepared statement
- */
-function prepareCheckStatement($pdo) {
-    $checkQuery = "SELECT COUNT(*) FROM vault WHERE user = :user AND timestamp = :timestamp AND amount = :amount";
-    return $pdo->prepare($checkQuery);
-}
-
-/**
- * Prepare a PDO statement for inserting a new vault transaction into the database.
- *
- * @param PDO $pdo The PDO instance to prepare the statement with
- *
- * @return PDOStatement The prepared statement
- */
-function prepareInsertStatement($pdo) {
-    $insertQuery = "INSERT INTO vault (ID, user, timestamp, description, amount) VALUES (:id, :user, :timestamp, :description, :amount)";
-    return $pdo->prepare($insertQuery);
-}
-
 /**
  * Process an array of log entries retrieved from the Torn v2 API.
  *