changes.src: remove double entry for %warning
changes.src: remove double entry for %warning

projedi/nasm,techkey/nasm,techkey/nasm,turingstudio/nasm,projedi/nasm,letolabs/nasm,Distrotech/nasm,Distrotech/nasm,techkey/nasm,projedi/nasm,turingstudio/nasm,letolabs/nasm,projedi/nasm,Distrotech/nasm,turingstudio/nasm,techkey/nasm,projedi/nasm,turingstudio/nasm,letolabs/nasm,Distrotech/nasm,techkey/nasm