8068619: remove unused internal function in layout
Summary: No functional change. Removes unused code. Makes JDK's layout engine have the same signature as ICU HarfBuzz's wrapper. Reviewed: http://mail.openjdk.java.net/pipermail/2d-dev/2015-March/005156.html
Reviewed-by: prr

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com