Remove auto-generated files in extboot/ directory.

diff --git a/tools/firmware/extboot/extboot.img b/tools/firmware/extboot/extboot.img
deleted file mode 100755 (executable)
index 0f755a5..0000000
Binary files a/tools/firmware/extboot/extboot.img and /dev/null differ

diff --git a/tools/firmware/extboot/signrom b/tools/firmware/extboot/signrom
deleted file mode 100755 (executable)
index 86b9dec..0000000
Binary files a/tools/firmware/extboot/signrom and /dev/null differ