debian packaging: remove python-future from python-qgis dependencies

on jessie and trusty

Author: jef-n

debian/control.in

@@ -372,7 +372,8 @@ Depends:
  python-pygments,
  python-requests,
 #!trusty# python-markupsafe, python-dateutil, python-yaml,
-#sid stretch jessie trusty xenial yakkety# python-owslib, python-tz, python-pyproj, python-future, python-six, python-pyspatialite,
+#stretch sid xenial yakkety# python-future,
+#sid stretch jessie trusty xenial yakkety# python-owslib, python-tz, python-pyproj, python-six, python-pyspatialite,
  libqgispython{QGIS_ABI},
  ${shlibs:Depends},
  ${python:Depends},