Revert "[PT Run] Smooth scrolling of the results list" (#15420)

This reverts commit 3ada3c2.

Author: jaimecbernardo

src/modules/launcher/PowerLauncher/ResultList.xaml

@@ -174,7 +174,6 @@
             Padding="0, 0"
             ScrollViewer.HorizontalScrollBarVisibility="Disabled"       
             ScrollViewer.VerticalScrollBarVisibility="Auto"       
-            ScrollViewer.CanContentScroll="False"
             SelectionMode="Single"
             SelectedIndex="{Binding Results.SelectedIndex, Mode=TwoWay}"
             SelectionChanged="SuggestionsListView_SelectionChanged"