unnecessary linking in nds, daqd_shmem, dv

The debian packaging is complaining about unnecessary linking in some of the binaries:

dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/advligorts-daqd/usr/bin/nds was not linked against libnsl.so.1 (it uses none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/advligorts-daqd/usr/bin/nds was not linked against libbz2.so.1.0 (it uses none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/advligorts-daqd/usr/bin/nds was not linked against libz.so.1 (it uses none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/advligorts-daqd/usr/bin/nds was not linked against libdl.so.2 (it uses none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/advligorts-daqd/usr/bin/daqd_shmem debian/advligorts-daqd/usr/bin/nds were not linked against libframecpp.so.12 (they use none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/dataviewer/usr/bin/dv was not linked against libXext.so.6 (it uses none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/dataviewer/usr/bin/dv was not linked against libSM.so.6 (it uses none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/dataviewer/usr/bin/dv was not linked against libICE.so.6 (it uses none of the library's symbols)
dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/dataviewer/usr/bin/dv was not linked against libXpm.so.4 (it uses none of the library's symbols)

These links require package dependencies that might not otherwise be there. Would be good to remove what's not actually used.