net/tap: remove unnecessary functions
net/tap: remove unnecessary functions

These functions are only two lines each and are used only once.

Signed-off-by: Pascal Mazon <f8a8edbbccb52ea5be26461cb34f4752a08c0c30@6wind.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk