Shellcheck warnings for no-longer-existent contrib scripts
```
% shellcheck --version
ShellCheck - shell script analysis tool
version: 0.7.1
```
Running `make check` results in a few warnings for both `contrib/dist/suse/tor.sh` and `contrib/dist/tor.sh`, namely SC2034 (unused variables) and SC2039 (POSIX incompatibilities). If shellcheck is right, then I can gladly go ahead and address these warnings in a PR.
issue