Bug 15217 Remove redundant duplicate var declaration

 Bug 15217 Remove redundant duplicate var declaration

remove superfluous second declaration of template, borrowernumber and
cookie which are never used

Also removed the variables @results and @results_array which are
declared but not used

Signed-off-by: Frédéric Demians <f.demians@tamil.fr>
  As suggested by Colin, perl -wc catalogue/search.pl doesn't complain
  anymore after applying the patch. perlcritic confirms the 2 variables
  were unused.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>