Just select all the text on one page and press Delete. This might be easier
to do if you set the zoom to Whole Page in Print Layout view, and it also
helps to click the ¶ button so you can see nonprinting characters (click the
button again to turn them off).
If the pages are separated by a manual page break, you'll need to delete
that also. You can see it by switching to Normal view. If they're separated
by a section break, you have to be careful not to lose section formatting --
see http://word.mvps.org/FAQs/Formatting/WorkWithSections.htm.