Remove internal pending_deprecate decorator #1375

Job	Run time
ruff	8s
mypy	30s
sdist	58s
parse_sdl (macos-latest, 3.2.16)	36s
parse_sdl (windows-latest, 3.2.16)	53s
tox (ubuntu-latest)	1m 14s
test-docs	1m 14s
build-macos (pp310-*)	1m 16s
build (windows-latest, 3.10, x64)	1m 12s
linux-wheels (x86_64, pp310-manylinux*)	1m 14s
build (windows-11-arm, 3.11, arm64)	1m 8s
build (ubuntu-latest, 3.10, x64)	1m 16s
build (ubuntu-latest, pypy-3.10, x64)	1m 18s
linux-wheels (aarch64, cp310-manylinux*)	1m 12s
build-macos (cp310-*_universal2)	1m 15s
linux-wheels (x86_64, cp310-manylinux*)	1m 13s
build (windows-latest, 3.10, x86)	1m 6s
linux-wheels (aarch64, pp310-manylinux*)	1m 11s
pyodide	1m 14s
build (windows-latest, pypy-3.10, x64)	1m 17s
publish	1s
	21m 26s

Provide feedback