Remove animations on listbox items (#5563)

src/Ryujinx.Ava/Assets/Styles/Styles.xaml

@@ -335,28 +335,6 @@
                 Value="{DynamicResource AppListBackgroundColor}" />
         <Setter Property="BorderThickness"
                 Value="2"/>
-        <Style.Animations>
-            <Animation Duration="0:0:0.7">
-                <KeyFrame Cue="0%">
-                    <Setter Property="MaxHeight"
-                            Value="0" />
-                    <Setter Property="Opacity"
-                            Value="0.0" />
-                </KeyFrame>
-                <KeyFrame Cue="50%">
-                    <Setter Property="MaxHeight"
-                            Value="1000" />
-                    <Setter Property="Opacity"
-                            Value="0.3" />
-                </KeyFrame>
-                <KeyFrame Cue="100%">
-                    <Setter Property="MaxHeight"
-                            Value="1000" />
-                    <Setter Property="Opacity"
-                            Value="1.0" />
-                </KeyFrame>
-            </Animation>
-        </Style.Animations>
     </Style>
     <Style Selector="ListBox ListBoxItem:selected /template/ ContentPresenter">
         <Setter Property="Background"