removed inherits postgresql::params

inheriting postgresql::params creates a cycle, because postgresql::repo gets instantiated in postgresql::globals which is inherited by postgresql::params. Also postgresql::params are not needed, because only version is used by postgresql::repo, postgresql::repo::yum_postgresql_org and postgresql::repo::apt_postgresql_org and it get set in postgresql::globals by a resource like class instantiation.

manifests/repo.pp

@@ -2,7 +2,7 @@
 class postgresql::repo (
   $version = undef,
   $proxy = undef,
-) inherits postgresql::params {
+) {
   case $::osfamily {
     'RedHat', 'Linux': {
       if $version == undef {