diff --git a/core/database.php b/core/database.php
index c2ed9d9a..de4e0122 100644
--- a/core/database.php
+++ b/core/database.php
@@ -336,78 +336,3 @@ class Database
         return $this->db;
     }
 }
-
-class MockDatabase extends Database
-{
-    /** @var int */
-    private $query_id = 0;
-    /** @var array */
-    private $responses = [];
-
-    public function __construct(array $responses = [])
-    {
-        parent::__construct("fake:dsn");
-        $this->responses = $responses;
-    }
-
-    public function execute(string $query, array $params=[], bool $scoreql = false): PDOStatement
-    {
-        log_debug(
-            "mock-database",
-            "QUERY: " . $query .
-            "\nARGS: " . var_export($params, true) .
-            "\nRETURN: " . var_export($this->responses[$this->query_id], true)
-        );
-        return $this->responses[$this->query_id++];
-    }
-
-    public function _execute(string $query, array $params=[])
-    {
-        log_debug(
-            "mock-database",
-            "QUERY: " . $query .
-            "\nARGS: " . var_export($params, true) .
-            "\nRETURN: " . var_export($this->responses[$this->query_id], true)
-        );
-        return $this->responses[$this->query_id++];
-    }
-
-    public function get_all(string $query, array $args=[], bool $scoreql = false): array
-    {
-        return $this->_execute($query, $args);
-    }
-    public function get_row(string $query, array $args=[], bool $scoreql = false): ?array
-    {
-        return $this->_execute($query, $args);
-    }
-    public function get_col(string $query, array $args=[], bool $scoreql = false): array
-    {
-        return $this->_execute($query, $args);
-    }
-    public function get_pairs(string $query, array $args=[], bool $scoreql = false): array
-    {
-        return $this->_execute($query, $args);
-    }
-    public function get_one(string $query, array $args=[], bool $scoreql = false)
-    {
-        return $this->_execute($query, $args);
-    }
-
-    public function get_last_insert_id(string $seq): int
-    {
-        return $this->query_id;
-    }
-
-    public function scoreql_to_sql(string $sql): string
-    {
-        return $sql;
-    }
-
-    public function create_table(string $name, string $def): void
-    {
-    }
-
-    public function connect_engine(): void
-    {
-    }
-}