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.
issue