How can I disable gallery or full view of the products

[Dimaer]

Hi guys,
New here.
Using ver 1.3 i know it is in better not, but my shop still got a lot to go as well and hopefully it will be fixed by then.
Anyways. The question is.

How can i disable view full size gallery on product page (either by clicking on link or on product image). I dont need this feature at all and such script does not help in terms of website productivity.

Please let me know if any suggestions. I did tried search first on forums but no results.

Cheers.