D28118: [wayland] Drop support for legacy xdg-shell-v6 protocol

zzag created this revision.
zzag added a reviewer: KWin.
Herald added a project: KWin.
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REVISION SUMMARY
  xdg-shell stable has been around for quite a while. A quick analysis
  showed that many distros ship GTK and Qt that support both xdg-shell
  v6 and stable. Therefore, we can drop support for legacy v6 protocol.

REPOSITORY
  R108 KWin

BRANCH
  drop-xdg-shell-v6

REVISION DETAIL
  https://phabricator.kde.org/D28118

AFFECTED FILES
  autotests/integration/dbus_interface_test.cpp
  autotests/integration/debug_console_test.cpp
  autotests/integration/decoration_input_test.cpp
  autotests/integration/dont_crash_cursor_physical_size_empty.cpp
  autotests/integration/dont_crash_no_border.cpp
  autotests/integration/effects/fade_test.cpp
  autotests/integration/effects/maximize_animation_test.cpp
  autotests/integration/effects/scripted_effects_test.cpp
  autotests/integration/idle_inhibition_test.cpp
  autotests/integration/input_stacking_order.cpp
  autotests/integration/kwin_wayland_test.h
  autotests/integration/move_resize_window_test.cpp
  autotests/integration/plasma_surface_test.cpp
  autotests/integration/pointer_constraints_test.cpp
  autotests/integration/quick_tiling_test.cpp
  autotests/integration/scene_qpainter_test.cpp
  autotests/integration/test_helpers.cpp
  autotests/integration/virtual_desktop_test.cpp
  autotests/integration/xdgshellclient_rules_test.cpp
  autotests/integration/xdgshellclient_test.cpp
  wayland_server.cpp
  wayland_server.h

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