mypy

Remove accidentally added `Python/deepfreeze/deepfreeze.c` (gh-150192) #21462

Job	Run time
Run mypy on Lib/tomllib	20s
Run mypy on Tools/peg_generator	18s
Run mypy on Lib/_pyrepl	19s
Run mypy on Tools/cases_generator	21s
Run mypy on Tools/clinic	24s
Run mypy on Tools/jit	21s
Run mypy on Tools/build	19s
Run mypy on Tools/check-c-api-docs	16s
Run mypy on Lib/test/libregrtest	20s
	2m 58s

Provide feedback