About unused pins

I'd like to know how to configure StratixIII I/O pins which are connected on a board to gnd, vcc, or to incoming signals from anothers components, which are not used by the fpga.

Have I to create input pins in the design for these unused pins, connect them to gnd/vcc, and define the incoming voltage? Or can I delete these pins in the design and select "reserve all unused pins as input tri-state with pull-up resistor"?

Can you confirm that these 2 solutions are safe and appropriate?

Thanks,

Francois