LibreOffice4Android: Reorganize resources.

Removed several copies of repeated resources and moved one of each to
the "drawable" directory.

There is no need to place several identical resources in "drawable-*"
directories, it's enough placing one copy in "drawable".

Change-Id: I72a9cecab5db7cdb461fcd7f89c783817746385b

android/experimental/LibreOffice4Android/res/drawable-hdpi/bg_striped.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file

android/experimental/LibreOffice4Android/res/drawable-hdpi/bg_striped_split.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_split_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file

android/experimental/LibreOffice4Android/res/drawable-ldpi/bg_striped.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file

android/experimental/LibreOffice4Android/res/drawable-ldpi/bg_striped_split.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_split_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file

android/experimental/LibreOffice4Android/res/drawable-mdpi/bg_striped.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file

android/experimental/LibreOffice4Android/res/drawable-mdpi/bg_striped_split.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_split_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file

android/experimental/LibreOffice4Android/res/drawable-xhdpi/bg_striped.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file

android/experimental/LibreOffice4Android/res/drawable-xhdpi/bg_striped_split.xml

-<?xml version="1.0" encoding="utf-8"?>
-
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-    android:src="@drawable/bg_striped_split_img"
-    android:tileMode="repeat"
-    android:dither="true" />
\ No newline at end of file