Android: remove `MonitorHandle` support #6669

Job	Run time
Check formatting	13s
Run cargo-deny on Android	23s
ESLint	11s
Run cargo-deny on iOS	20s
Run cargo-deny on Linux	21s
Minimize JavaScript	8s
Run cargo-deny on macOS	20s
Run cargo-deny on Redox OS	19s
Run cargo-deny on Web	19s
Taplo	5s
Run cargo-deny on Windows	18s
Check for typos	7s
Test stable Windows 64bit MSVC	2m 35s
Test stable Windows 32bit MSVC	3m 5s
Test stable Windows 64bit GNU	2m 20s
Test stable Windows 32bit GNU	2m 33s
Test stable Linux 32bit	1m 55s
Test stable Linux 64bit	1m 50s
Test stable X11	1m 16s
Test stable Wayland	1m 10s
Test stable Android	1m 25s
Test stable Redox OS	22s
Test stable macOS	53s
Test stable iOS x86_64	1m 2s
Test stable iOS Aarch64	47s
Test stable Web	58s
Test nightly Windows 64bit MSVC	1m 29s
Test nightly Windows 32bit MSVC	1m 34s
Test nightly Windows 64bit GNU	2m 16s
Test nightly Windows 32bit GNU	2m 24s
Test nightly Linux 32bit	2m 3s
Test nightly Linux 64bit	1m 43s
Test nightly X11	1m 22s
Test nightly Wayland	1m 23s
Test nightly Android	1m 18s
Test nightly Redox OS	27s
Test nightly macOS	1m 2s
Test nightly iOS x86_64	59s
Test nightly iOS Aarch64	59s
Test 1.73 Windows 64bit MSVC	1m 7s
Test 1.73 Windows 32bit MSVC	1m 3s
Test 1.73 Windows 64bit GNU	1m 16s
Test 1.73 Windows 32bit GNU	58s
Test 1.73 Linux 32bit	1m 13s
Test 1.73 Linux 64bit	56s
Test 1.73 X11	40s
Test 1.73 Wayland	44s
Test 1.73 macOS	40s
Test 1.73 iOS x86_64	29s
Test 1.73 iOS Aarch64	29s
Test 1.73 Web	40s
Test 1.73 Android	39s
Test nightly Web	1m 10s
Test nightly Web Atomic	1m 36s
	57m 54s

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