Android Question I can't get rid of the vertical black bars (Samsung S8)

AddManifestText(
<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="14"/>
<supports-screens
    android:xlargeScreens="true"
    android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
CreateResource(values-v14, theme.xml,
<resources>
  <style
     name="LightTheme" parent="@android:style/Theme.Holo.Light">
     <item name="android:windowFullscreen">true</item>
  </style>
</resources>)
CreateResource(values-v20, theme.xml,
<resources>
  <style
     name="LightTheme" parent="@android:style/Theme.Material.Light">
     <item name="android:windowFullscreen">true</item>
  </style>
</resources>)
SetApplicationAttribute(android.permission, "READ_FRAME_BUFFER")
SetApplicationAttribute(android:theme, "@style/LightTheme")
SetApplicationAttribute(android:icon, "@mipmap/ic_launcher")
SetApplicationAttribute(android:label, "$LABEL$")
SetApplicationAttribute(android:largeHeap, "true")