Remove now unused API-problem filter #10024

Job	Run time
Event File	5s
Detect changed paths	3s
Build (Windows) (21) / build	12m 15s
Build (Linux) (21, gtk4, x11) / build	9m 19s
Build (Linux) (21, gtk4, wayland) / build	11m 30s
Build (Linux) (21, gtk3, x11) / build	8m 45s
Build (macOS) (21, x86_64) / build	12m 7s
Build (macOS) (21, aarch64) / build	5m 41s
	59m 45s

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