3882 remove xmod & friends

*** 156,183 ****
  ./usr/src/cmd/sgs/*/*/*chk.msg
  
  #
  # Ignore files that get used during a EXPORT_SRC or CRYPT_SRC build only.
  #
- ./usr/src/common/crypto/aes/Makefile
- ./usr/src/common/crypto/arcfour/Makefile
- ./usr/src/common/crypto/blowfish/Makefile
- ./usr/src/common/crypto/des/Makefile
- ./usr/src/common/crypto/rsa/Makefile
  ./usr/src/lib/gss_mechs/mech_dh/backend/mapfile-vers
  ./usr/src/lib/gss_mechs/mech_dh/dh1024/mapfile-vers
  ./usr/src/lib/gss_mechs/mech_dh/dh192/mapfile-vers
  ./usr/src/lib/gss_mechs/mech_dh/dh640/mapfile-vers
- ./usr/src/lib/gss_mechs/mech_krb5/mapfile-vers-clean
- ./usr/src/lib/gss_mechs/mech_spnego/mapfile-vers-clean
- ./usr/src/lib/pkcs11/pkcs11_softtoken/common/Makefile
- ./usr/src/uts/common/Makefile
- ./usr/src/uts/common/crypto/io/Makefile
- ./usr/src/uts/common/gssapi/include/Makefile
- ./usr/src/uts/common/gssapi/mechs/dummy/Makefile
- ./usr/src/uts/common/gssapi/mechs/krb5/Makefile
- ./usr/src/xmod
  
  #
  # Ignore Makefiles which are used by developers but not used by nightly
  # itself.  This is a questionable practice, since they tend to rot.
  #
--- 156,169 ----