`ignore_on_*` directives haven't been used in a while and require a special version of bpfloader. Remove them.
While doing so, pad the `map_def` and `prog_def` structs, to maintain existing size.
Note: The mainline shipped bpf .o files are now in a location
that no platform bpfloader ever looked/looks at.
As such maintaining .o format compatibility with older release
is not needed.
Test: TreeHugger
Flag: EXEMPT dead code removal / mainline
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I485c9645bdece2ad27add08347688d0f1c93e5d2