hpmor-6.tex: remove a spurious \setcounter call

Thanks, @norwd.

As far as I can tell, this didn’t make any difference (the first page of the
first chapter was still numbered 1).

Author: rrthomas

hpmor-6.tex

@@ -12,7 +12,6 @@
 \pagenumbering{arabic}
 \setcounter{page}{1}
 
-\setcounter{page}{0}
 \include{chapters/hpmor-chapter-100}
 \include{chapters/hpmor-chapter-101}
 \include{chapters/hpmor-chapter-102}