Remove the $(datadir)/wine directory on uninstall.

diff --git a/Makefile.in b/Makefile.in
index c9d38f3..2cd6873 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -97,7 +97,7 @@
 
 uninstall:: $(INSTALLBOTHSUBDIRS:%=%/__uninstall__)
 	$(RM) $(datadir)/aclocal/wine.m4
-	-rmdir $(datadir)/aclocal
+	-rmdir $(datadir)/wine $(datadir)/aclocal
 
 .PHONY: install-aclocal