removing the touch of mozilla/security/Makefile unless we are explicitly

building BUILD_MODULES=psm... othwerwise, the checkout of the psm module
fails on an existing, built mozilla tree. r=cls

allmakefiles.sh

@@ -952,7 +952,6 @@ $MAKEFILES_plugin
 $MAKEFILES_netwerk
 $MAKEFILES_profile
 $MAKEFILES_rdf
-$MAKEFILES_security
 $MAKEFILES_sun_java
 $MAKEFILES_themes
 $MAKEFILES_uriloader