Admin/isatest/settings/mac-poly64-M4

--- a/Admin/isatest/settings/mac-poly64-M4	Wed Aug 08 11:53:14 2012 +0200
+++ b/Admin/isatest/settings/mac-poly64-M4	Wed Aug 08 12:10:22 2012 +0200
@@ -23,7 +23,6 @@
 ISABELLE_OUTPUT="$ISABELLE_HOME_USER/heaps"
 ISABELLE_BROWSER_INFO="$ISABELLE_HOME_USER/browser_info"
 
-ISABELLE_USEDIR_OPTIONS="-i false -d false -t true -M 4 -q 2"
 ISABELLE_BUILD_OPTIONS="browser_info=false document=false threads=4 parallel_proofs=2"
 
 ISABELLE_FULL_TEST=true