Dropping DISPLAY env variable support

8 jobs for master in 4 minutes and 1 second (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #19976
linux
build:linux

00:01:27

passed #19975
mac_old
build:mac

00:02:06

passed #19974
win32
build:win32

00:01:04

passed #19973
winxp
build:winxp

00:01:15

 
  Dist
passed #19980
linux
dist:linux

00:00:16

passed #19979
mac_old
dist:mac

00:01:39

passed #19978
win32
dist:win32

00:00:15

passed #19977
winxp
dist:winxp

00:00:14