Remove unused resource files

Bug: 16631312
Test: presubmit
Change-Id: Ib67c0ac3eb8e15761bc4a08899b9e973d47d6a74
diff --git a/res/mipmap-hdpi/ic_launcher_gallery.png b/res/mipmap-hdpi/ic_launcher_gallery.png
deleted file mode 100644
index 23ea998..0000000
--- a/res/mipmap-hdpi/ic_launcher_gallery.png
+++ /dev/null
Binary files differ
diff --git a/res/mipmap-mdpi/ic_launcher_gallery.png b/res/mipmap-mdpi/ic_launcher_gallery.png
deleted file mode 100644
index e1a9949..0000000
--- a/res/mipmap-mdpi/ic_launcher_gallery.png
+++ /dev/null
Binary files differ
diff --git a/res/mipmap-xhdpi/ic_launcher_gallery.png b/res/mipmap-xhdpi/ic_launcher_gallery.png
deleted file mode 100644
index 79544a2..0000000
--- a/res/mipmap-xhdpi/ic_launcher_gallery.png
+++ /dev/null
Binary files differ