patch for SSL Makefile.postamble

[e.sammer]

this one liner fixes an error when doing a "make distclean" on base when 
SSL is unconfigured. the error was "Can not remove directory . or .." 
and was coming from the command "rm -rf $(GNUSTEP_TARGET_DIR)" in the 
postamble. now, i removed the line and configured with and without ssl 
to test it and there's nothing left over that should be deleted after a 
distclean, but i'm not sure what GNUSTEP_TARGET_DIR is supposed to be so 
i can't be sure either way.

in any event, here's the patch for core/base/SSL/Makefile.postamble

--
eric sammer <eric@linuxstep.org>
LinuxSTEP   <http://www.linuxstep.org>
InterfaceWM <http://interfacewm.sourceforge.net>

Index: SSL/Makefile.postamble
===================================================================
RCS file: /cvsroot/gnustep/gnustep/core/base/SSL/Makefile.postamble,v
retrieving revision 1.2
diff -r1.2 Makefile.postamble
71d70
<       rm -rf $(GNUSTEP_TARGET_DIR)