Revert "lenovo/t400/4.5-1564-g6fa36c9c2c-dirty/2017-04-16T13_28_27Z"

This reverts commit e5454d36ca2f96e452a228db9a1485bff2e8f32e.

The commit in question deletes a lot of unrelated files, and needs to be
reverted.
diff --git a/asus/kfsn4-dre/4.4-1530-gfbce31a/2016-09-14T20_24_19Z/rom_checksum.txt b/asus/kfsn4-dre/4.4-1530-gfbce31a/2016-09-14T20_24_19Z/rom_checksum.txt
new file mode 100644
index 0000000..06beee6
--- /dev/null
+++ b/asus/kfsn4-dre/4.4-1530-gfbce31a/2016-09-14T20_24_19Z/rom_checksum.txt
@@ -0,0 +1 @@
+d9885fe537e9b742f5a05f8a6a8ccfbd *build/coreboot.rom