feat: Remove autogenerated key functionality

This commit removes the functionality that automatically generates and writes
keys to *_autogenerated files. The key derivation logic is preserved, but
derived keys are now only stored in memory and not written to disk.

Changes include:
- Remove loading from *_autogenerated key files
- Make WriteKeyToFile a no-op function
- Remove all file writing operations in SetKey methods
- Remove file writing for keyblobs and other derived keys
- Update copyright notices

This change improves security by not storing derived keys on disk and
simplifies the key management system.

0 files changed, 0 insertions, 0 deletions