clean up includes in packages CLASS2, COLLOID, COMPRESS, and CORESHELL

src/CORESHELL/compute_temp_cs.cpp

@@ -18,9 +18,7 @@
 
 #include "compute_temp_cs.h"
 #include <mpi.h>
-#include <cstdlib>
 #include <cstring>
-#include <cmath>
 #include "atom.h"
 #include "atom_vec.h"
 #include "domain.h"
@@ -28,7 +26,6 @@
 #include "force.h"
 #include "group.h"
 #include "modify.h"
-#include "fix.h"
 #include "fix_store.h"
 #include "comm.h"
 #include "memory.h"