The `unit1621_LDADD` variable has the exact same value as the `LDADD`
flag in `Makefile.am`, except without `@LDFLAGS@ @LIBCURL_LIBS@`.
This was originally added by [
98e6629][], but I can't see any reason
why it exists, so we should remove it to clean things up.
[
98e6629]: https://github.com/curl/curl/commit/
98e6629154044e4ab1ee7cff8351c7ebcb131e88
Closes #11494
unit1620_SOURCES = unit1620.c $(UNITFILES)
unit1621_SOURCES = unit1621.c $(UNITFILES)
-unit1621_LDADD = $(top_builddir)/src/libcurltool.la $(top_builddir)/lib/libcurl.la @NSS_LIBS@
unit1650_SOURCES = unit1650.c $(UNITFILES)