With the new method, "nj_massive" is redundant

With the new method, implemented in the previous commit (ae1c36e), of weeding out test particles from the j-particles, "nj_massive" has become redundant.

Author: HannoSpreeuw

lib/sapporo_light/sapporo.h

@@ -125,7 +125,6 @@ class sapporo {
   double EPS2;
 
   int            nj_modified;
-  int            nj_massive;  // number of particles with mass > SAPPORO_TEST_PARTICLE_MASS
   vector<int>    address_j;
   vector<DS2>    t_j;
   vector<DS4>    pos_j;
@@ -180,7 +179,6 @@ class sapporo {
 
     predict = false;
     nj_modified = 0;
-    nj_massive = 0;
 
     device.address_j = NULL;