stdweb: Remove CI runs with cargo-web
stdweb: Remove CI runs with cargo-web

Right now "cargo web test" is broken due to upstream changes. We will
disable stdweb tests until the stdweb project fixes things.

See: https://github.com/koute/cargo-web/issues/243

Signed-off-by: Joe Richey <24d3dd8348b5cac19a417e52b4f8141ba91506f0@google.com>

rust-random/getrandom