remove Gfx::initDisplayProfile

This routine used to set the display profile to the first OutputIntent it finds, doing so regardless
of the display profile potentially set by the user and regardless of color format of the output device.

Cf. issue #959 for an illustration of the effects.
7 jobs for removeinitdisplayprofile in 4 minutes and 43 seconds (queued for 4 seconds)
latest
Status Job ID Name Coverage
  Build
passed #4848252
build

00:04:43

passed #4848257
build_android

00:00:36

passed #4848253
build_clang_libcpp

00:04:26

passed #4848256
build_clazy

00:02:03

passed #4848255
build_mingw64_fedora

00:03:03

passed #4848254
build_ubuntu_16_04

00:01:45

passed #4848251
clang_format

00:01:06