MT#61779 Remove duplicate ngcp-license-client check

There is a more complete check that should already handle the case this
instance was covering, with a non-empty license-key.

This was causing the following parse failure with the new goss version
from Debian trixie:

  ,---
  Error: could not read json data in /etc/ngcp-system-tests/510_init-daemons-ngcp.yaml: yaml: unmarshal errors:
    line 115: mapping key "ngcp-license-client.service" already defined at line 31
  `---

Reported-by: goss 0.4.9
Change-Id: I7323fbd80e2b13d0bcc280210bdb8010b910c5f1

templates/510_init-daemons-ngcp.yaml.tt2

@@ -128,12 +128,6 @@ service:
     enabled: [% general.ngcp_type != 'spce' ? 'true' : 'false' %]
     running: [% general.ngcp_type != 'spce' ? 'true' : 'false' %]
 
-[% IF general.license_key != '' -%]
-  ngcp-license-client.service:
-    enabled: true
-    running: true
-
-[% END -%]
   # Obsolete, never running.
   ngcp-rtcengine.service:
     enabled: false