Since upstream efivar-37 pulibc efi_set_verbose in its
headers [daf3b6c Move verbosity headers to be public],
it is not necessary to delcare in efibootmgr.
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
