fix(steami_config): Simplify examples for frozen driver imports.

[nedseb]

Context

Now that make firmware (PR #246) enables building firmware with drivers frozen in ROM, the RAM management hacks in examples are no longer needed.

Problem

calibrate_temperature.py uses __import__() / sys.modules.pop() / gc.collect() to load and unload drivers one at a time to stay within RAM limits. With frozen drivers, all imports come from ROM and don't consume significant RAM.

Solution

Replace dynamic imports with standard from xxx import XXX imports. Remove gc.collect() and sys.modules.pop() workarounds.

Related

• PR tooling: Add firmware build and deploy targets. #246 — Firmware build and deploy targets (merged)
• Issue Memory: investigate RAM usage when loading multiple drivers #175 — RAM pressure investigation

[semantic-release-updater]

🎉 This issue has been resolved in version 0.1.2 🎉

The release is available on GitHub release

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