Remove loglevel directive from Exec[update_apt]

When using puppet apply (v 3.7), loglevel 'info'
won't show the output on error. This is bad for
debugging.

manifests/init.pp

@@ -142,7 +142,6 @@ class apt(
     require     => [
       File['/etc/apt/apt.conf.d', '/etc/apt/preferences' ],
       File['/etc/apt/sources.list'] ],
-    loglevel    => 'info',
     refreshonly => true,
     # Another Semaphor for all packages to reference
     alias       => [ 'apt_updated', 'refresh_apt']