add Java 6 as a possibility

releng.control/commonComputedVariables.shsource

@@ -93,10 +93,8 @@ echo "    Build Home: ${BUILD_HOME}"
 echo "    DISPLAY: ${DISPLAY}"
 echo
 echo "    JAVA_4_HOME: ${JAVA_4_HOME}"
-echo "        ${bootclasspath}"
 echo
 echo "    JAVA_5_HOME: ${JAVA_5_HOME}"
-echo "        ${bootclasspath_15}"
 echo
 echo "    ANT_HOME: ${ANT_HOME}"
 echo