Remove manual definition of Py_LIMITED_API #1135

Job	Run time
mypy	31s
sdist	3m 14s
pyodide	4m 23s
ruff	6s
parse_sdl (macos-latest, 3.2.16)	24s
parse_sdl (windows-latest, 3.2.16)	46s
test-docs	3m 44s
tox (ubuntu-latest)	4m 48s
build (windows-latest, pypy-3.10, x64)	4m 16s
build (ubuntu-latest, pypy-3.10, x64)	7m 1s
build (ubuntu-latest, 3.10, x64)	5m 48s
build (windows-latest, pypy-3.10, x86)	4m 29s
build (windows-latest, 3.10, x86)	3m 57s
linux-wheels (aarch64, cp310-manylinux*)	4m 0s
linux-wheels (x86_64, pp310-manylinux*)	3m 35s
build (windows-latest, 3.10, x64)	3m 35s
linux-wheels (x86_64, cp310-manylinux*)	4m 3s
linux-wheels (aarch64, pp310-manylinux*)	3m 25s
build-macos (pp310-*)	4m 23s
build-macos (cp310-*_universal2)	2m 6s
publish	0s
	1h 8m 34s

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