Remove unnecessary functions

[Brayden]

Previously was taking the approach of manually escaping SQL based on params input, but seems I simply missed that you can optionally pass in params as a second input to .exec but only when it exists. Otherwise it will fail if you pass in undefined.

Testing SQL cURL:

curl --location --request POST 'https://starbasedb.brayden-b8b.workers.dev/query' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer ABC123' \
--data-raw '{
    "sql": "SELECT * FROM artist WHERE artistid=$1;",
    "params": [123]
}'

Worth noting that the following code would not work:

cursor = this.sql.exec(sql, params ?? []);

If the params array is valid but empty, it still breaks. It must be like this:

if (params && params.length) {
    cursor = this.sql.exec(sql, params);
} else {
    cursor = this.sql.exec(sql);
}