Fix iOS build error in waterrowerusb: virtualbike_ios() returns void … #14128

Job	Run time
ios-build	17m 15s
linux-x86-build	10m 37s
window-msvc2019-aiserver-build	17m 10s
raspberry-pi-build-and-image-64bit	11m 0s
android-build	7m 47s
window-msvc2019-build (false)	18m 45s
raspberry-pi-build	11m 26s
window-msvc2019-build (true)	14m 40s
window-build (false)	16m 9s
window-build (true)	16m 37s
window-msvc2022-pr-build	0s
nordictrack-build	0s
peloton-bike-build	0s
window-msvc2022-build	0s
fitpro-build	0s
peloton-bike-plus-build	0s
android-emulator-test (24)	6h 0m 2s
android-emulator-test (28)	3m 53s
android-emulator-test (26)	3m 45s
android-emulator-test (30)	4m 31s
android-emulator-test (29)	3m 51s
android-emulator-test (35)	4m 14s
android-emulator-test (31)	4m 37s
android-emulator-test (36)	4m 57s
android-emulator-test (33)	4m 58s
raspberry-pi-smoke-test	1m 59s
upload_to_release	0s
	8h 58m 13s

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