While I'm here:
- remove AUDO_DRIVER, INPUT_DRIVER and VIDEO_DRIVER variables, they was used to
patch target-tomoko/GNUMakefile. This directory doesn't exist and the
relevant REINPLACE_CMD removed at commit 597ca5a01e.
- remove unused options: OSS, INPUT_X. The OSS doesn't exist and INPUT_X
sets only INPUT_DRIVER variable (see above).
- pet portlint, portfmt, portclippy
PR: 286810