refactor(editorconfig): Removed FreeRTOS tab rule
refactor(editorconfig): Removed FreeRTOS tab rule

FreeRTOS used tabs before, but changed to spaces now.
This hasn't been reflected in the editorconfig file
and is fixed now.

espressif/esp-idf,espressif/esp-idf,espressif/esp-idf,espressif/esp-idf