puppet: factorize all jenkins::plugin::install's require attribute
puppet: factorize all jenkins::plugin::install's require attribute

There's little point in specifying this attribute in each and every
jenkins::plugin::install entry since all of them use it. So switch to
using a default value for all entries.

[ Best viewed with --patience ]

Signed-off-by: Cyril Brulebois <367d233c448abb973a0136207eb0cf446765a6f5@debamax.com>

mika/jenkins-debian-glue,linuxmaniac/jenkins-debian-glue,hashar/jenkins-debian-glue,linuxmaniac/jenkins-debian-glue,hashar/jenkins-debian-glue,mika/jenkins-debian-glue