Change strategy for pam.d entry

The symbolic link did not stay a symbolic link.
Use %post in rpm instead.

confluent_server/confluent_server.spec.tmpl

@@ -40,6 +40,9 @@ true
 %post
 sysctl -p /usr/lib/sysctl.d/confluent.conf >& /dev/null
 if [ -x /usr/bin/systemctl ]; then /usr/bin/systemctl try-restart confluent >& /dev/null; fi
+if [ ! -e /etc/pam.d/confluent ]; then
+    ln -s /etc/pam.d/sshd /etc/pam.d/confluent
+fi
 true
 
 %clean

confluent_server/pam/confluent

@@ -1 +0,0 @@
-/etc/pam.d/sshd

confluent_server/setup.py.tmpl

@@ -22,7 +22,6 @@ setup(
                       'pyghmi>=1.0.44'],
     scripts=['bin/confluent', 'bin/confluentdbutil', 'bin/collective'],
     data_files=[('/etc/init.d', ['sysvinit/confluent']),
-                ('/etc/pam.d/', ['pam/confluent']),
                 ('/usr/lib/sysctl.d', ['sysctl/confluent.conf']),
                 ('/usr/lib/systemd/system', ['systemd/confluent.service']),
 		('/opt/confluent/lib/python/confluent/plugins/console/', [])],