Remove unnecessary check in npair_kokkos

  data.special_flag[2] = special_flag[2];

  data.special_flag[3] = special_flag[3];

  if(list->d_neighbors.dimension_0()<nall) { // Can this EVER be true??? - TIM 20170215

    list->d_neighbors = typename ArrayTypes<DeviceType>::t_neighbors_2d("neighbors", nall*1.1, list->maxneighs);

    list->d_numneigh = typename ArrayTypes<DeviceType>::t_int_1d("numneigh", nall*1.1);

    data.neigh_list.d_neighbors = list->d_neighbors;

    data.neigh_list.d_numneigh = list->d_numneigh;

  }

  data.h_resize()=1;

  while(data.h_resize()) {

    data.h_new_maxneighs() = list->maxneighs;