hg: jigsaw/jake/langtools: Cleanup after ProblemList.jake.txt removal

[mandy . chung]

Changeset: d8475d27a07c
Author:    mchung
Date:      2016-03-15 20:32 -0700
URL:       http://hg.openjdk.java.net/jigsaw/jake/langtools/rev/d8475d27a07c

Cleanup after ProblemList.jake.txt removal

! make/build.xml
! test/Makefile