address PR comments

Signed-off-by: Ryan Dyer <ryan-dyer-sp@users.noreply.github.com>

manifests/integrations/network.pp

@@ -22,17 +22,16 @@
 class datadog_agent::integrations::network(
   Boolean $collect_connection_state          = false,
   Boolean $collect_connection_queues         = false,
-  Array[String] $excluded_interfaces         = ['lo','lo0'],
+  Array[String] $excluded_interfaces         = [],
   String $excluded_interface_re              = '',
   Boolean $combine_connection_states         = true,
   Boolean $collect_rate_metrics              = true,
   Boolean $collect_count_metrics             = false,
-  String $conntrack_path                     = '/usr/sbin/conntrack',
+  String $conntrack_path                     = undef,
   Boolean $use_sudo_conntrack                = true,
   Array[String] $whitelist_conntrack_metrics = [],
   Array[String] $blacklist_conntrack_metrics = [],
   Boolean $collect_aws_ena_metrics           = false,
-  Boolean $collect_ethtool_metrics           = false,
   Array[String] $tags                        = [],
   String $service                            = '',
   Integer $min_collection_interval           = 15,

templates/agent-conf.d/network.yaml.erb

@@ -32,7 +32,6 @@ instances:
 <% end ) -%>
 <% end -%>
     collect_aws_ena_metrics: <%= @collect_aws_ena_metrics %>
-    collect_ethtool_metrics: <%= @collect_ethtool_metrics %>
 <% if !@tags.empty? -%>
     tags:
 <%- (@tags.each do |tag| -%>