Remove useless things

src/compute_pressure.cpp

@@ -87,7 +87,7 @@ ComputePressure::ComputePressure(LAMMPS *lmp, int narg, char **arg) :
         pstyle = new char[n];
         strcpy(pstyle,arg[iarg++]);
 
-        nsub = 0;
+        int nsub = 0;
 
         if (narg > iarg) {
           if (isdigit(arg[iarg][0])) {

src/compute_pressure.h

@@ -49,7 +49,6 @@ class ComputePressure : public Compute {
   void virial_compute(int, int);
 
  private:
-  int nsub;
   char *pstyle;
 };
 

src/pair_hybrid.h

@@ -33,7 +33,6 @@ class PairHybrid : public Pair {
   friend class Respa;
   friend class Info;
   friend class PairDeprecated;
-  friend class ComputePressure;
  public:
   PairHybrid(class LAMMPS *);
   virtual ~PairHybrid();