Remove WordPress scripts

What Theme are you using? Your question is entirely Theme-dependent, so specific answers will requiring knowing what Theme you use. (Also, it would be helpful to know if any of your Plugins are injecting scripts.)

The answer really depends on how those scripts and scripts are called.

  1. If they are called properly, they are registered and enqueued, which means that you simply need to deregister them.
  2. If they are hard-coded into the header, the easiest solution would probably be to create a custom header template file, called e.g. header-custom.php, which you can then call in your template file, via get_header( 'custom' ).