p2pd: remove some dead code
p2pd: remove some dead code

Coverity:
CID 739634 (#1 of 1): Dead default in switch (DEADCODE)
  Execution cannot reach this statement "default:".

Signed-off-by: Ferry Huberts <66e11f9f5d965b69497c7e73d5e808f8b13c1218@pelagic.nl>

diogomg/olsrd-binary-heap,acinonyx/olsrd,diogomg/olsrd,ninuxorg/olsrd,diogomg/olsrd,acinonyx/olsrd,sebkur/olsrd,cholin/olsrd,tdz/olsrd,cholin/olsrd,cholin/olsrd,sebkur/olsrd,ninuxorg/olsrd,cholin/olsrd,zioproto/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd,sebkur/olsrd,nolith/olsrd,diogomg/olsrd,sebkur/olsrd,zioproto/olsrd,nolith/olsrd,ninuxorg/olsrd,ninuxorg/olsrd,diogomg/olsrd-binary-heap,tdz/olsrd,diogomg/olsrd,sebkur/olsrd,sebkur/olsrd,diogomg/olsrd,zioproto/olsrd,diogomg/olsrd-binary-heap,cholin/olsrd,tdz/olsrd,nolith/olsrd,diogomg/olsrd-binary-heap,tdz/olsrd,acinonyx/olsrd,ninuxorg/olsrd,acinonyx/olsrd,diogomg/olsrd,diogomg/olsrd-binary-heap,nolith/olsrd,tdz/olsrd,diogomg/olsrd,nolith/olsrd,acinonyx/olsrd