middleware: Drop support for unsupported Django versions

15 jobs for master in 45 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #98092
py27-django110-jsonfield0

00:00:17

passed #98093
py27-django110-jsonfield1

00:00:17

passed #98094
py27-django110-jsonfield2

00:00:16

passed #98095
py27-django111-jsonfield0

00:00:17

passed #98096
py27-django111-jsonfield1

00:00:16

passed #98097
py27-django111-jsonfield2

00:00:11

passed #98098
py36-django110-jsonfield0

00:00:12

passed #98099
py36-django110-jsonfield1

00:00:12

passed #98100
py36-django110-jsonfield2

00:00:12

passed #98101
py36-django111-jsonfield0

00:00:13

passed #98102
py36-django111-jsonfield1

00:00:13

passed #98103
py36-django111-jsonfield2

00:00:13

passed #98104
py36-django20-jsonfield0

00:00:13

passed #98105
py36-django20-jsonfield1

00:00:13

passed #98106
py36-django20-jsonfield2

00:00:13