ARROW-14595: [R] Clean up from setting deps_source to auto

[jonkeane]

No description provided.

[github-actions]

https://issues.apache.org/jira/browse/ARROW-14595

[github-actions]

⚠️ Ticket has not been started in JIRA, please click 'Start Progress'.

[thisisnic]

Good catch there!

[jonkeane]

@github-actions crossbow submit -g r

Checking if this breaks anything

[github-actions]

Revision: 25f9049

Submitted crossbow builds: ursacomputing/crossbow @ actions-1328

Task	Status
conda-linux-gcc-py36-cpu-r40
conda-linux-gcc-py37-cpu-r41
conda-osx-clang-py36-r40
conda-osx-clang-py37-r41
conda-win-vs2017-py36-r40
conda-win-vs2017-py37-r41
homebrew-r-autobrew
test-fedora-r-clang-sanitizer
test-r-arrow-backwards-compatibility
test-r-depsource-bundled
test-r-depsource-system
test-r-devdocs
test-r-gcc-11
test-r-install-local
test-r-linux-as-cran
test-r-linux-rchk
test-r-linux-valgrind
test-r-minimal-build
test-r-offline-maximal
test-r-offline-minimal
test-r-rhub-debian-gcc-devel-lto-latest
test-r-rhub-ubuntu-gcc-release-latest
test-r-rocker-r-base-latest
test-r-rstudio-r-base-4.1-centos7-devtoolset-8
test-r-rstudio-r-base-4.1-centos8
test-r-rstudio-r-base-4.1-focal
test-r-rstudio-r-base-4.1-opensuse15
test-r-rstudio-r-base-4.1-opensuse42
test-r-ubuntu-21.04
test-r-versions
test-ubuntu-18.04-r-sanitizer

[ursabot]

Benchmark runs are scheduled for baseline = d0628b7 and contender = f1f291f. f1f291f is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Finished ⬇️0.0% ⬆️0.0%] ec2-t3-xlarge-us-east-2
[Failed ⬇️0.9% ⬆️0.0%] ursa-i9-9960x
[Failed] ursa-thinkcentre-m75q
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python. Runs only benchmarks with cloud = True
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java