tools: remove unused pkgsrc directory

The pkgsrc Makefile target was removed in 2015

Refs: #1938

PR-URL: #28783
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Author: targos

Makefile

@@ -1035,7 +1035,6 @@ $(TARBALL): release-only $(NODE_EXE) doc
 	$(RM) -r $(TARNAME)/tools/node_modules
 	$(RM) -r $(TARNAME)/tools/osx-*
 	$(RM) -r $(TARNAME)/tools/osx-pkg.pmdoc
-	$(RM) -r $(TARNAME)/tools/pkgsrc
 	find $(TARNAME)/ -name ".eslint*" -maxdepth 2 | xargs $(RM)
 	find $(TARNAME)/ -type l | xargs $(RM) # annoying on windows
 	tar -cf $(TARNAME).tar $(TARNAME)