Added a placeholder method to delete objects from the database.

src/main/java/hhn/temp/project/provider/Database.java

@@ -5,7 +5,7 @@ import java.nio.file.Path;
 import java.sql.SQLException;
 
 public interface Database {
-  public void connect() throws SQLException, IOException;
+  public void connect() throws SQLException;
   public void close() throws SQLException;
   public void clearDatabase() throws SQLException;
 }