swupdate: remove check for obsolete version
Revert "swupdate: fix building 2016.07 version", commit
cad5e257f38d5c78f28f38b0c5bfa4c7c56f0144, as 2016.07 is not among the available
versions anymore.
Signed-off-by: Diego Rondini <diego.rondini@kynetics.com>