Fix unused qualifications warnings #2048

Job	Run time
build (1.73.0, thumbv7em-none-eabi)	39s
build (1.73.0, wasm32-unknown-unknown)	37s
build (stable, thumbv7em-none-eabi)	42s
cross (armv7-unknown-linux-gnueabihf, 1.73.0)	1m 45s
build (stable, wasm32-unknown-unknown)	32s
cross (armv7-unknown-linux-gnueabihf, stable)	1m 31s
cross (aarch64-unknown-linux-gnu, 1.73.0)	1m 27s
cross (aarch64-unknown-linux-gnu, stable)	1m 16s
doc	1m 3s
cross (powerpc-unknown-linux-gnu, 1.73.0)	1m 35s
cross (powerpc-unknown-linux-gnu, stable)	1m 30s
test (i686-unknown-linux-gnu, 1.73.0, sudo apt update && sudo apt install gcc-multilib)	1m 54s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	1m 45s
test (x86_64-unknown-linux-gnu, 1.73.0)	1m 34s
test (x86_64-unknown-linux-gnu, stable)	1m 32s
	19m 22s

Provide feedback