PYTHON-5134 Fix binary installation and remove unused scripts

[blink1073]

• The issue was the use of TMPDIR
• Consolidated handling of drivers-tools variables
• Removed unused scripts

Passing build: https://spruce.mongodb.com/task/mongo_python_driver_auth_aws_ubuntu_20_python3.13_aws_auth_test_6.0_patch_9a7bac7d4512bd2450e5b2609b3629f013d2cd5c_67acd837f3c28500074985ab_25_02_12_17_20_01/logs?execution=0

[NoahStapp]

Lots of windows failures with .evergreen/scripts/setup-dev-env.sh: line 35: /data/mci/91032c40373a5ca1631cee8358db6ace/drivers-tools/.bin/uv: Permission denied: https://evergreen.mongodb.com/task_log_raw/mongo_python_driver_test_win64_python3.9_test_6.0_sharded_cluster_auth_ssl_async_patch_9a7bac7d4512bd2450e5b2609b3629f013d2cd5c_67acedd298ad5c00076c0f29_25_02_12_18_52_03/0?type=T

[blink1073]

Weird, not sure what caused that... I sure do love path issues on Windows...

[blink1073]

Fixed. uv had a release last night. I suspect the files were no longer executable.

[NoahStapp]

Can we split the consolidation and removal of unused scripts into a separate PR?

[blink1073]

Can we split the consolidation and removal of unused scripts into a separate PR?

I needed the consolidation in order to move the handling of TMPDIR, which was the primary failure. I don't think restoring the other unused scripts is worth the effort to recreate the files in this PR.

[blink1073]

Actually they were separate commits, I can undo them.

[blink1073]

Nevermind, the commit was intertwined and reverting it caused a conflict.

[NoahStapp]

Looks good! Can you update the title to reflect the cleanups that happen in here as well?