cargo-update-recipe-crates.bbclass: Do not add name= to crate:// URIs

cargo-update-recipe-crates.bbclass: Do not add name= to crate:// URIs

With the recent change to the crate fetcher, which automatically sets
the name to for each crate to be versioned, there is no longer a need to
explicitly set the name= parameter for each URI. This also results in
generated files that are compatible with the crate fetcher in Kirkstone
and Langdale.

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>