[py] Removing sge-demanding from dask client confs

SGE-demanding does not make much sense at Idiap since the network update
4 jobs for config-resources in 11 minutes and 39 seconds (queued for 7 seconds)
Status Name Job ID Coverage
  Build
passed build_linux_36 #212868
docker

00:04:41

passed build_linux_37 #212869
docker

00:04:34

passed build_macosx_36 #212866
macosx

00:11:39

passed build_macosx_37 #212867
macosx

00:11:36