* examples/sexp-conv.c (sexp_get_quoted_string): Deleted function.

Merged with sexp_get_String.
(sexp_get_hex_string): Likewise.
(sexp_get_base64_string): Likewise.
(sexp_get_string): Do hex and base64 decoding.

Rev: src/nettle/examples/sexp-conv.c:1.13