4028 remove CLOSED_IS_PRESENT

@@ -363,18 +363,10 @@
         export ENVLDLIBS3
 fi
 
 osbld_flag=0
 
-if [[ ! -v CLOSED_IS_PRESENT ]]; then
-        if [[ -d $SRC/../closed ]]; then
-                export CLOSED_IS_PRESENT="yes"
-        else
-                export CLOSED_IS_PRESENT="no"
-        fi
-fi
-
 if [[ -z "$ONBLD_DIR" ]]; then
         ONBLD_DIR=$(/bin/dirname $(whence $0))
 fi
 
 if ! echo ":$PATH:" | grep ":${ONBLD_DIR}:" > /dev/null; then