Merge pull request #5850 from Vulpine05/Vulpine05_Unused_func #4934

Job	Run time
libs-build	6m 20s
apps-build	9m 56s
libs-cmake-build	7m 43s
client-armv6-build	2m 55s
client-arm-build	4m 8s
client-arm64-build	3m 39s
client-x86-build	3m 14s
client-x86_64-build	4m 1s
manager-build (assembleRelease)	4m 22s
manager-build (assembleXiaomi_release)	4m 20s
manager-build (assembleArmv6_release)	4m 21s
manager-build (jacocoTestReportDebug)	6m 22s
	1h 1m 21s

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