gcr: Don't specify checksum types for certificate fingerprint docs
The docs for gcr_certificate_get_fingerprint
and gcr_certificate_get_fingerprint_hex
suggest that only SHA1 and MD5 are supported, but looking at the source for GcrCertificate any algo supported by GLib should be supported since it uses GChecksum to calculate the hash, right?
This MR remove sentences that suggest only SHA1 and MD5 are supported hashes when getting a certificate's fingerprint.