NetBpfLoad: remove support for 'old' formats

cannot happen as it only loads mainline code
that it was built (and tested) along side of.

ie. a failure here would cause a TH boot failure.

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ia350deb10b4e40c9f4f01ea140a0bf97db508086
1 file changed