macros: remove Cargo.lock

cargo-package automatically strips it out, but we package also some
things directly from git.

Acked-by: Josh Stone <jistone@redhat.com>
Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

data/macros.cargo

@@ -28,6 +28,7 @@ directory = "%{cargo_registry}"\
 registry = "https://crates.io"\
 replace-with = "local-registry"\
 EOF \
+%{__rm} -f Cargo.lock \
 %if ! %{with check} \
 # https://github.com/rust-lang/cargo/issues/3732 \
 %{__awk} -i inplace -v INPLACE_SUFFIX=.orig '/^\\\[dev-dependencies/{f=1;next} /^\\\[/{f=0}; !f' Cargo.toml \