delete fakepredtuple.sh.template

This file is not needed; I am passing the --with-hft option from the
hft.sh script. This also avoids having the other options (e.g. what
version of the matrix package should be used ) defined in multiple
places, which is just error prone.
hft: pt>20, new qflip (scale_with_mc_last_ptbin), new fake (May_16)

- use qflip mat corrected at high-pt (need file from svn, see
  https://svnweb.cern.ch/trac/atlasphys/changeset/167932/Physics/SUSY/Analyses/WeakProduction/ChargeFlip
- fill hft only when pt>20 for both leptons
- use fake matrix May_16 (updated errors, split HF/LF both el and mu,
  eta-dep sf computed after pt>20)