android: Remove unused integer xmls

src/android/app/src/main/res/values-w1000dp/integers.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <integer name="game_grid_columns">4</integer>
-</resources>

src/android/app/src/main/res/values-w500dp/integers.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <integer name="game_grid_columns">2</integer>
-</resources>

src/android/app/src/main/res/values-w750dp/integers.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <integer name="game_grid_columns">3</integer>
-</resources>

src/android/app/src/main/res/values/integers.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <integer name="game_title_lines">2</integer>
-    <integer name="game_grid_columns">1</integer>
 
     <!-- Default SWITCH landscape layout -->
     <integer name="SWITCH_BUTTON_A_X">760</integer>