[gtk/wip/carlosg/for-master] gtkeventcontrollerscroll: Drop device type checks

[Carlos Garnacho <carlosg src gnome org>]

commit 11e4a4696713bc70084e11f8ee3a1a127b03e01a
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Sep 28 23:30:05 2020 +0200

    gtkeventcontrollerscroll: Drop device type checks
    
    Kinetic scrolling (and begin/end tracking) broke with commit cab1dcb696
    since the pointing device used on X11 does not get as much GdkInputSource
    granularity as the source device used to have in GTK3.
    
    Actually this is kinda pointless, devices incapable of smooth scroll
    should send discrete events, without those devices in the picture, we
    want kinetic scroll to apply on every other device capable of smooth
    scroll, so just do that.
    
    Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/3210

 gtk/gtkeventcontrollerscroll.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/gtk/gtkeventcontrollerscroll.c b/gtk/gtkeventcontrollerscroll.c
index 46573ca7de..8b67f4ca91 100644
--- a/gtk/gtkeventcontrollerscroll.c
+++ b/gtk/gtkeventcontrollerscroll.c
@@ -263,9 +263,7 @@ gtk_event_controller_scroll_handle_event (GtkEventController *controller,
 
       gdk_scroll_event_get_deltas (event, &dx, &dy);
 
-      if (!scroll->active &&
-          (input_source == GDK_SOURCE_TRACKPOINT ||
-           input_source == GDK_SOURCE_TOUCHPAD))
+      if (!scroll->active)
         {
           g_signal_emit (controller, signals[SCROLL_BEGIN], 0);
           scroll_history_reset (scroll);