Remove AppVeyor #9

Job	Run time
Windows (Win32)	4m 16s
Unix (ubuntu-latest, normal)	9m 12s
Unix (ubuntu-latest, minified)	10m 48s
Windows (x64)	6m 22s
Unix (ubuntu-latest, minimal)	10m 27s
Windows (ARM64)	6m 12s
Unix (ubuntu-latest, minimal-with-xml)	4m 42s
Windows (ARM64EC)	10m 46s
Unix (macos-latest, normal)	6m 29s
Unix (macos-latest, minified)	3m 10s
Unix (macos-latest, minimal)	3m 21s
Unix (macos-latest, minimal-with-xml)	1m 49s
	1h 17m 34s

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