Removing dhclient killer

   * Remove old hack, since now we don't need 
     dhclient killer as soon as we use cloud init.

Prod-related: PROD-15696 (PROD:15696)     

Change-Id: I286bd0f2b7a74362e609d0f058b63874304117a5
diff --git a/linux/network/dhclient.sls b/linux/network/dhclient.sls
index c0b007b..6de2cfd 100644
--- a/linux/network/dhclient.sls
+++ b/linux/network/dhclient.sls
@@ -8,11 +8,4 @@
     - source: salt://linux/files/dhclient.conf
     - template: jinja
 
-{%- elif network.dhclient.enabled is defined and network.dhclient.enabled == False %}
-
-kill_dhcp_client:
-  cmd.run:
-  - name: "pkill dhclient"
-  - onlyif: "pgrep dhclient"
-
 {%- endif %}