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/4.5-1343-g8e07900/2017-03-18T15_54_08Z/rom_checksum.txt b/asus/kfsn4-dre/4.5-1343-g8e07900/2017-03-18T15_54_08Z/rom_checksum.txt
new file mode 100644
index 0000000..0a20b34
--- /dev/null
+++ b/asus/kfsn4-dre/4.5-1343-g8e07900/2017-03-18T15_54_08Z/rom_checksum.txt
@@ -0,0 +1 @@
+a87318afb2bd4813ffed91b27f754371 *build/coreboot.rom