diff --git a/ui/src/main/res/values-v21/styles.xml b/ui/src/main/res/values-v21/styles.xml
deleted file mode 100644
index 2546b41f..00000000
--- a/ui/src/main/res/values-v21/styles.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <style name="AppTheme" parent="Theme.MaterialComponents.DayNight">
-        <item name="colorPrimary">@color/primary_color</item>
-        <item name="colorOnPrimary">@color/color_control_normal</item>
-        <item name="colorPrimaryDark">@color/primary_color</item>
-        <item name="colorPrimaryVariant">@color/primary_light_color</item>
-        <item name="colorSecondary">@color/secondary_color</item>
-        <item name="colorOnSecondary">@color/secondary_text_color</item>
-        <item name="colorSurface">@color/primary_color</item>
-        <item name="colorOnSurface">@color/color_control_normal</item>
-        <item name="colorBackground">@color/primary_color</item>
-        <item name="colorMultiselectActiveBackground">@color/list_multiselect_background</item>
-        <item name="colorControlNormal">@color/color_control_normal</item>
-        <item name="elevationOverlayColor">@color/primary_light_color</item>
-        <item name="elevationOverlayEnabled">true</item>
-        <item name="android:statusBarColor">#000000</item>
-        <item name="android:navigationBarColor">#000000</item>
-        <item name="android:windowBackground">@color/primary_color</item>
-        <item name="alertDialogTheme">@style/AppTheme.Dialog</item>
-        <item name="materialAlertDialogTheme">@style/AppTheme.Dialog</item>
-        <item name="textInputStyle">@style/TextInputLayoutBase</item>
-        <item name="materialCardViewStyle">@style/AppTheme.MaterialCardView</item>
-    </style>
-</resources>