Remove unused base64 encoding of idkey digest in gen_bridge_descriptors.
Remove unused base64 encoding of idkey digest in gen_bridge_descriptors.

The raw digest is passed to the function for making the networkstatus
document, where it is then base64-encoded and its trailing '='s are
stripped. Remove an extra, unused line from the main makeDescriptors()
function where this is done again, but not passed to the networkstatus
creation function.

isislovecruft/leekspin,isislovecruft/leekspin