search_free_space changed since this was implemented and the code is
no longer compatible
Looking at it again, the function is not used anywhere other than syscall.c
and the second function does not seem to fix anything specific so this
just removes the untested side.
Change-Id: If28d35ec4da083a40dc6936fcb21f05fb64e378a
Fujitsu: POSTK_DEBUG_ARCH_DEP_27