8064571: java/lang/instrument/IsModifiableClassAgent.java: assert(length > 0) failed: should only be called if table is present Summary: Remove tautological assert Reviewed-by: coleenp, lfoltan, sspitsyn, jiangli

^build/
^dist/
nbproject/private/
^webrev
^.hgtip
^.bridge2
.DS_Store