Berry internal: remove class from closure to simplify code

[s-hadinger]

Description:

Berry revert of #21490
This PR introduced complexity in storage that is finally not worth it, as I found a different way to mutualize code in Matter. The same effect could be implemented at Solidification time, without changing the solidified code.

No functional change.

Code reduced by 1.8KB

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.7
• The code change is tested and works with Tasmota core ESP32 V.3.0.2
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass