Change the way ShouldProcessClock is specified in line with framework changes

osu.Game.Rulesets.Osu/UI/Cursor/CursorTrail.cs

@@ -62,6 +62,7 @@ namespace osu.Game.Rulesets.Osu.UI.Cursor
         {
             // as we are currently very dependent on having a running clock, let's make our own clock for the time being.
             Clock = new FramedClock();
+            ShouldProcessClock = true;
 
             RelativeSizeAxes = Axes.Both;
 

osu.Game/Rulesets/UI/RulesetInputManager.cs

@@ -91,8 +91,6 @@ namespace osu.Game.Rulesets.UI
 
         #region Clock control
 
-        protected override bool ShouldProcessClock => false; // We handle processing the clock ourselves
-
         private ManualClock clock;
         private IFrameBasedClock parentClock;