auto generate kernel and initrd links

[bootimage] / initrd.img

diff --git a/initrd.img b/initrd.img
deleted file mode 120000 (symlink)
index aa779de..0000000
--- a/initrd.img
+++ /dev/null
@@ -1 +0,0 @@
-stretch_uefi_root/initrd.img
\ No newline at end of file