Remove unused variables from anisotropy_ajn.f90
Remove unused variables from anisotropy_ajn.f90

Unused variables produce a warning with -Wall (gfortran), so remove them to
improve readability when building with lib/anisotropy_ajn.so or from source

anowacki/seismo-fortran,anowacki/seismo-fortran,anowacki/seismo-fortran,anowacki/seismo-fortran