Bump build dependency on openstack-pkg-tools

New version does not require net-tools.

See Debian bug:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=858698

Change-Id: Ibb3b4e72a3e6480e6d112a9bd786f6e46b37b007

debian/changelog

@@ -1,9 +1,9 @@
 heat (1:7.0.0-4) unstable; urgency=medium
 
   * Team upload.
-  * Add missing dependency net-tools (Closes: #858698).
+  * Bump build dependency on openstack-pkg-tools (Closes: #858698).
 
- -- David Rabel <david.rabel@noresoft.com>  Sat, 25 Mar 2017 12:15:57 +0100
+ -- David Rabel <david.rabel@noresoft.com>  Sat, 01 Apr 2017 11:36:53 +0200
 
 heat (1:7.0.0-3) unstable; urgency=medium
 

debian/control

@@ -6,7 +6,7 @@ Uploaders: Thomas Goirand <zigo@debian.org>,
 Build-Depends: debhelper (>= 10),
                dh-python,
                dh-systemd,
-               openstack-pkg-tools (>= 53~),
+               openstack-pkg-tools (>= 54~),
                po-debconf,
                python-all,
                python-pbr (>= 1.8),
@@ -179,7 +179,6 @@ Package: heat-common
 Architecture: all
 Depends: adduser,
          dbconfig-common,
-         net-tools,
          python-heat (=${binary:Version}),
          q-text-as-data,
          ${misc:Depends},