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/lenovo/t420/4.1-657-g2f225b9-dirty/2015-10-18T04:55:21Z/config.short.txt b/lenovo/t420/4.1-657-g2f225b9-dirty/2015-10-18T04:55:21Z/config.short.txt
new file mode 100644
index 0000000..08040ee
--- /dev/null
+++ b/lenovo/t420/4.1-657-g2f225b9-dirty/2015-10-18T04:55:21Z/config.short.txt
@@ -0,0 +1,14 @@
+CONFIG_USE_OPTION_TABLE=y
+CONFIG_COLLECT_TIMESTAMPS=y
+CONFIG_USE_BLOBS=y
+CONFIG_VENDOR_LENOVO=y
+CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y
+CONFIG_HAVE_IFD_BIN=y
+CONFIG_HAVE_ME_BIN=y
+CONFIG_HAVE_GBE_BIN=y
+CONFIG_BOARD_LENOVO_T420=y
+CONFIG_USBDEBUG=y
+CONFIG_FRAMEBUFFER_KEEP_VESA_MODE=y
+CONFIG_CONSOLE_USB=y
+CONFIG_PAYLOAD_ELF=y
+CONFIG_DEBUG_ACPI=y