TT#60700 Remove non-optional depdendencies from nth packages

Remove etckeeper, which is required already by ngcpcfg.
Remove libtemplate-perl, which is required already by its users.

Change-Id: I33b9bcc283ca677a6b39280675551054679e48ff

debian/control

@@ -168,7 +168,6 @@ Depends:
  ca-certificates,
  debian-goodies,
  dstat,
- etckeeper,
  gdb,
  gdisk,
  ifenslave,
@@ -181,7 +180,6 @@ Depends:
  ledmon,
  less,
  libngcp-bulkprocessor-perl,
- libtemplate-perl,
  locales-all,
  lsb-release,
  lsof,
@@ -228,7 +226,6 @@ Depends:
  ca-certificates,
  debian-goodies,
  dstat,
- etckeeper,
  gdb,
  gdisk,
  ifenslave,
@@ -239,7 +236,6 @@ Depends:
  irqbalance,
  less,
  libngcp-bulkprocessor-perl,
- libtemplate-perl,
  locales-all,
  lsb-release,
  lsof,