Remove unusued symbols #1082

Job	Run time
Check & Compile	4m 53s
Build for macOS (x64)	2m 18s
Build for Windows (x64)	7m 24s
WPILib: Build for Linux (x64)	1m 23s
Build for Linux/AppImage (x64)	1m 47s
Build for Windows (arm64)	7m 47s
Build for macOS (arm64)	2m 7s
WPILib: Build for Linux (arm64)	1m 35s
Build for Linux/AppImage (arm64)	1m 38s
Build for Linux/AppImage (armv7l)	1m 47s
WPILib: Build for macOS (x64)	2m 33s
WPILib: Build for Windows (x64)	6m 35s
WPILib: Build for macOS (arm64)	1m 51s
WPILib: Build for Windows (arm64)	7m 59s
Finalize Release	0s
	51m 37s

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