TT#19050 Drop libhsclient-dev from dependensy to fix dose-distcheck

We are NOT providing libhsclient-dev at the moment,
will be introduced in the future commits. Removing it for now to fix:

14:13:18 + dose-distcheck -f -e --fg deb:///tmp/tmp.CjtuZgEwG2/statedir/lists/sp:9998_autobuild_dists_release-trunk-stretch_main_binary-amd64_Packages --bg deb:///tmp/tmp.CjtuZgEwG2/statedir/lists/sp:9998_debian_dists_stretch_main_binary-amd64_Packages --bg deb:///tmp/tmp.CjtuZgEwG2/statedir/lists/sp:9998_debian-security_dists_stretch-security_main_binary-amd64_Packages --bg deb:///tmp/tmp.CjtuZgEwG2/statedir/lists/sp:9998_debian_dists_stretch_non-free_binary-amd64_Packages
14:13:24 output-version: 1.2
14:13:26 report:
14:13:26  -
14:13:26   package: libhsclient-c-wrapper
14:13:26   version: 5.5.0.0+0~mr5.5.0.0+0~20170720094609.5+stretch~1.gbp06d2f7
14:13:26   architecture: all
14:13:26   status: broken
14:13:26   reasons:
14:13:26    -
14:13:26     missing:
14:13:26      pkg:
14:13:26       package: libhsclient-c-wrapper
14:13:26       version: 5.5.0.0+0~mr5.5.0.0+0~20170720094609.5+stretch~1.gbp06d2f7
14:13:26       architecture: all
14:13:26       unsat-dependency: libhsclient-dev
14:13:26
14:13:26 background-packages: 52266
14:13:26 foreground-packages: 244
14:13:26 total-packages: 52510
14:13:26 broken-packages: 1

Change-Id: I91518322d547e1863cf73e7e0e0c48327f2bc12c

debian/control

@@ -10,7 +10,6 @@ Homepage: http://sipwise.com/
 Package: libhsclient-c-wrapper
 Architecture: all
 Depends:
- libhsclient-dev,
  ${misc:Depends},
  ${shlibs:Depends},
 Description: library for handlersocket handling in C programs