Compilation error caused by serial_usart protocol with fresh QMK master

[proostas]

When compiling with the fresh QMK master I get the following error:

Not including data from file: keyboards/corne/rev4_1/info.json
☒ split.transport.protocol: 'serial_usart' is not one of ['custom', 'i2c', 'serial']

I seems that it was introduced by this change.

Is there a workaround or should I use older QMK? Or should I just replace serial_usart with serial?

[proostas]

I removed the whole line 67 "protocol": "serial_usart", from rev4_1/info.json and now it compiles without errors and the resulting firmware works well.