(#17067) Don't install etc/ssl/clients/PLACEHOLDER in install.rb
(#17067) Don't install etc/ssl/clients/PLACEHOLDER in install.rb

PLACEHOLDER exists so that the directory will be created during install. This
can be handled more gracefully in packaging, so this commit removes that file
from install.rb. Any packaging that uses install.rb will need to create this
directory.

ploubser/marionette-collective,heathseals/marionette-collective,geoffnichols/marionette-collective,puppetlabs/marionette-collective,pimpajr/marionette-collective,jessereynolds/marionette-collective,spandeyindia/marionette-collective-1,ploubser/marionette-collective,shrug/marionette-collective,Iristyle/marionette-collective,jessereynolds/marionette-collective,spandeyindia/marionette-collective-1,spandeyindia/marionette-collective-1,Iristyle/marionette-collective,kbarber/marionette-collective,MikaelSmith/marionette-collective,pimpajr/marionette-collective,MikaelSmith/marionette-collective,puppetlabs/marionette-collective,kbarber/marionette-collective,johnduarte/marionette-collective,puppetlabs/marionette-collective,Iristyle/marionette-collective,MikaelSmith/marionette-collective,shrug/marionette-collective,Iristyle/marionette-collective,MikaelSmith/marionette-collective,geoffnichols/marionette-collective,jessereynolds/marionette-collective,pimpajr/marionette-collective,richardc/marionette-collective,geoffnichols/marionette-collective,ploubser/marionette-collective,MikaelSmith/marionette-collective,Iristyle/marionette-collective,geoffnichols/marionette-collective,shrug/marionette-collective,johnduarte/marionette-collective,spandeyindia/marionette-collective-1,ploubser/marionette-collective,shrug/marionette-collective,heathseals/marionette-collective,heathseals/marionette-collective,kbarber/marionette-collective,johnduarte/marionette-collective,shrug/marionette-collective,richardc/marionette-collective,ploubser/marionette-collective,kbarber/marionette-collective,johnduarte/marionette-collective,geoffnichols/marionette-collective,jessereynolds/marionette-collective,heathseals/marionette-collective,spandeyindia/marionette-collective-1,richardc/marionette-collective,johnduarte/marionette-collective,spandeyindia/marionette-collective-1,puppetlabs/marionette-collective,kbarber/marionette-collective,shrug/marionette-collective,puppetlabs/marionette-collective,richardc/marionette-collective,MikaelSmith/marionette-collective,heathseals/marionette-collective,pimpajr/marionette-collective,pimpajr/marionette-collective,richardc/marionette-collective,heathseals/marionette-collective,Iristyle/marionette-collective,johnduarte/marionette-collective,richardc/marionette-collective,jessereynolds/marionette-collective,pimpajr/marionette-collective,kbarber/marionette-collective,jessereynolds/marionette-collective,puppetlabs/marionette-collective