[gtk+] (17 commits) Non-fast-forward update to branch wip/matthiasc/kill-device-manager

[Matthias Clasen <matthiasc src gnome org>]

The branch 'wip/matthiasc/kill-device-manager' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  670913e... widget: Don't use GdkDeviceManager
  b36f856... window: Don't use GdkDeviceManager
  d5f448d... treeview: Don't use GdkDeviceManager
  6f98647... Drop gdk_display_get_device_manager API
  9a162bd... gdk: Move gdk_disable_multidevice tot he X11 backend
  3bf9fdc... Drop support for setting event masks for floating devices
  e30375b... Don't mention GdkDeviceManager in docs
  8f6bd97... Drop GdkDeviceManager APIs
  f127e2a... broadway: Stop using GdkDeviceManager
  c08a58b... broadway: Remove devicemanager implementation

Commits added to the branch:

  9b582db... gsk: Quiet a compiler warning (*)
  7bbc1cb... widget: Don't use GdkDeviceManager
  7dd99c4... window: Don't use GdkDeviceManager
  8f07256... treeview: Don't use GdkDeviceManager
  d5ba765... Drop gdk_display_get_device_manager API
  156bbb9... gdk: Move gdk_disable_multidevice tot he X11 backend
  9545892... Drop support for setting event masks for floating devices
  aa21ee0... Don't mention GdkDeviceManager in docs
  90030e8... Drop GdkDeviceManager APIs
  3c0eb70... display: Stop using devicemanager internally
  8878a49... broadway: Stop using GdkDeviceManager
  88defc1... broadway: Remove devicemanager implementation
  94f0dbc... x11: Stop using gdk_display_get_device_manager
  bcceae4... win32: Stop using gdk_display_get_device_manager
  46234f5... quartz: Stop using display->device_manager
  d3555dd... wayland: Stop using display->device_manager
  000607b... display: Drop the device_manager for good

(*) This commit already existed in another branch; no separate mail sent