CI failed due to a warning for an unused variable, because the variab… #702

Job	Run time
linux-oldest	2m 49s
linux-per-backend	6m 2s
linux	4m 50s
linux-latest-dev	3m 24s
windows-oldest	6m 4s
windows	3m 3s
android-sdl	5m 0s
android-sfml-graphics	1m 53s
ios-sfml-graphics	15s
macos	1m 44s
windows-clang	6m 5s
ios-sdl	3m 25s
windows-static-mt	5m 11s
nightly-build-windows-visual-studio	0s
	49m 45s

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