TT#64358 Fix debhelper warnings

- List files that are not being installed under debian/not-installed.
- Remove unused shlibs:Depends substvar from klish-dev.

Change-Id: I5b97d66f1e62d5cfda78251686f914fc6abec56b

debian/control

@@ -25,6 +25,5 @@ Architecture: any
 Depends:
  klish,
  ${misc:Depends},
- ${shlibs:Depends},
 Description: development files for klish
  This package contains the development files for klish.

debian/not-installed

@@ -0,0 +1,3 @@
+usr/lib/clish/*.la
+usr/lib/clish/clish_plugin_clish.a
+usr/lib/clish/clish_plugin_lua.a