Removed unused declared/passed variables

src/compute_dhdx_dhdy_dhdz.f90

@@ -41,8 +41,7 @@ double precision volume
 double precision,dimension(:),allocatable :: h,dhdr,dhds,dhdt
 double precision jcb(3,3),jcbi(3,3)
 double precision eps
-integer ierr,nproc,iproc
-integer i,j,k,err
+integer k,err
 integer nint
 
 !-------------------------------------------------------------------------------