TT#38823 Remove captagent references

The functionality from this packages has been replaced by voisniff-ng.

Change-Id: If81ba1d930b5c9ab56d8d94222fb5a308204d4a2

debian/control

@@ -305,7 +305,6 @@ Depends:
  ngcp-backup-tools-pro,
  ngcp-billing-tools,
  ngcp-bootenv-pro,
- ngcp-captagent,
  ngcp-cdr-exporter,
  ngcp-check-tools,
  ngcp-cleanup-tools-pro,
@@ -497,7 +496,6 @@ Depends:
  ngcp-backup-tools-pro,
  ngcp-billing-tools,
  ngcp-bootenv-pro,
- ngcp-captagent,
  ngcp-cdr-exporter,
  ngcp-check-tools,
  ngcp-cleanup-tools-pro,