remove old workaround, exclude CMake IOS build #84

Job	Run time
🐧 Linux (SCons, GCC)	14m 15s
🐧 Linux (SCons, GCC, Double Precision)	47s
🏁 Windows (SCons, x86_64, MSVC)	1m 55s
🏁 Windows (SCons, x86_64, MinGW)	35m 41s
🍎 macOS (SCons, universal)	1m 27s
🤖 Android (SCons, arm64)	1m 19s
🍏 iOS (SCons, arm64)	1m 32s
🌐 Web (SCons, wasm32)	1m 19s
🐧 Linux (CMake, GCC)	15m 59s
🐧 Linux (CMake, GCC, Double Precision)	48s
🏁 Windows (CMake, x86_64, MSVC)	24m 8s
🏁 Windows (CMake, x86_64, MinGW)	2m 26s
🍎 macOS (CMake, universal)	52m 56s
🤖 Android (CMake, arm64)	12m 7s
🌐 Web (CMake, wasm32)	23m 49s
	3h 10m 28s

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