Remove indirect project dependencies

[stmcginnis]

Issue number:

N/A

Description of changes:

Several projects had dependencies listed in their Cargo.toml files that were not actually direct dependencies. As far as I could see, most of these were transient dependencies (dependencies of dependencies) that get pulled into the Cargo.lock file without needing to explicitly include them in Cargo.toml. This could result in pulling in, and building, a dependency that is no longer needed by the direct dependency that originally needed it.

This cleans up all identified instances to make sure we are only declaring what we directly need in each project.

Testing done:

Checked for extra dependencies with cargo machete.

Verified after removing dependencies that the project could still build:

# PROJECTS=[list of impacted project paths]
for project in $PROJECTS; do
    pushd "${p}"
    VARIANT=aws-k8s-1.26 cargo build
    popd
done

Checked for any issues with cargo make check.

Built aws-k8s-1.26 variant and deployed cluster node. Verified new node showed up healthy in the cluster.
Connected to node via SSM and ran several apiclient commands to make sure things were operating as expected:

apiclient get os
# output

apiclient set settings.aws.profile=joe
apiclient get settings.aws
# verified output

apiclient -u /settings
# output

Terms of contribution:

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.