Simplify skills #51

Job	Run time
macOS \| NDK-r27c \| cmake \| no-ffmpeg \| 16kb	2m 47s
macOS \| NDK-r26d \| cmake \| with-ffmpeg \| 16kb	3m 51s
macOS \| NDK-r27c \| cmake \| with-ffmpeg \| 4kb	3m 37s
macOS \| NDK-r27c \| cmake \| with-ffmpeg \| 16kb	2m 51s
macOS \| NDK-r26d \| cmake \| no-ffmpeg \| 4kb	3m 44s
macOS \| NDK-r27c \| cmake \| no-ffmpeg \| 4kb	2m 55s
macOS \| NDK-r26d \| cmake \| no-ffmpeg \| 16kb	3m 12s
macOS \| NDK-r26d \| cmake \| with-ffmpeg \| 4kb	4m 30s
	27m 27s

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