How \ or can you, delete a Saved SQL Query?
1. Tools > SQL Query
2. Select the desired user from the User drop down from whom you want to delete saved SQL queries
3. Select the desired SQL query which should be deleted from the SQL query drop down
4. Click the 'Save' Button
5. In the Saved SQL Queries dialog window, Select the (last) option 'Delete query'
6. Click OK to return to the SQL query window after the delete has completed.