Attempting to fix Java11+ compatibility issue.

Author: Jacek Gębal

src/main/java/org/utplsql/cli/datasource/InitializableOracleDataSource.java

@@ -6,7 +6,6 @@
 import java.io.PrintWriter;
 import java.sql.CallableStatement;
 import java.sql.Connection;
-import java.sql.ConnectionBuilder;
 import java.sql.SQLException;
 import java.sql.SQLFeatureNotSupportedException;
 import java.util.logging.Logger;