OPNSense/core a766639Scripts/development crawl_legacy_deps.py inspect_function_usage.py, Scripts/development/lib legacy_deps.py __init__.py

cleanup, remove some helpers that where useful back in 2015 to search dependencies in legacy files. Don't want to upgrade them to python3, since we don't use this anymore.

(cherry picked from commit 413d4f1aa3a7d80ca291f523880ab30ae39d2d97)
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+0-253Scripts/development/lib/legacy_deps.py
+0-72Scripts/development/crawl_legacy_deps.py
+0-48Scripts/development/inspect_function_usage.py
+0-0Scripts/development/lib/__init__.py
+0-3734 files

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