Remove lifecycles from core

[JoviDeCroock]

Checking out the byte size impact of removing these lifecycles, we can remove componentWillUpdate as well due to #4760. 53b is a lower impact than I had expected, what do we think about this one?

[github-actions]

📊 Tachometer Benchmark Results

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[github-actions]

Size Change: -119 B (-0.26%)

Total Size: 46.4 kB

Filename	Size	Change
dist/preact.js	4.57 kB	-44 B (-0.95%)
dist/preact.mjs	4.59 kB	-38 B (-0.82%)
dist/preact.umd.js	4.65 kB	-37 B (-0.79%)

ℹ️ View Unchanged

Filename	Size
compat/dist/compat.js	3.73 kB
compat/dist/compat.mjs	3.65 kB
compat/dist/compat.umd.js	3.79 kB
debug/dist/debug.js	3.85 kB
debug/dist/debug.mjs	3.85 kB
debug/dist/debug.umd.js	3.94 kB
devtools/dist/devtools.js	260 B
devtools/dist/devtools.mjs	271 B
devtools/dist/devtools.umd.js	346 B
hooks/dist/hooks.js	1.55 kB
hooks/dist/hooks.mjs	1.58 kB
hooks/dist/hooks.umd.js	1.62 kB
jsx-runtime/dist/jsxRuntime.js	861 B
jsx-runtime/dist/jsxRuntime.mjs	830 B
jsx-runtime/dist/jsxRuntime.umd.js	934 B
test-utils/dist/testUtils.js	473 B
test-utils/dist/testUtils.mjs	473 B
test-utils/dist/testUtils.umd.js	555 B

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