Configurations/unix-Makefile.tmpl: not -v for rm

Not all Unixen know the -v option
Reviewed-by: NTomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9012)

(cherry picked from commit 3b8033f3f593ac06aaea5d050960366001ef99f0)

Configurations/unix-Makefile.tmpl

@@ -449,7 +449,7 @@ uninstall_sw: uninstall_runtime uninstall_engines uninstall_dev
 install_docs: install_man_docs install_html_docs
 
 uninstall_docs: uninstall_man_docs uninstall_html_docs
-	$(RM) -r -v $(DESTDIR)$(DOCDIR)
+	$(RM) -r $(DESTDIR)$(DOCDIR)
 
 install_ssldirs:
 	@$(PERL) $(SRCDIR)/util/mkdir-p.pl $(DESTDIR)$(OPENSSLDIR)/certs