Those are already documented at:
Documentation/driver-api/firmware/request_firmware.rst
Including it twice is causing lots of warnings:
./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
Declaration is 'request_firmware'.
./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
Declaration is 'firmware_request_nowarn'.
./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
Declaration is 'request_firmware_direct'.
./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
Declaration is 'firmware_request_platform'.
./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
Declaration is 'firmware_request_cache'.
./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
Declaration is 'request_firmware_into_buf'.
./Documentation/driver-api/infrastructure.rst: WARNING: Duplicate C declaration, also defined in 'driver-api/firmware/request_firmware'.
Declaration is 'request_firmware_nowait'.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>