Fix daemon crash caused by deleted submodule #11463

Job	Run time
Test mypyc suite with 32-bit Python	12m 24s
Test suite with py38-ubuntu, mypyc-compiled	23m 17s
Test suite with py38-windows-64	32m 24s
Test suite with py39-ubuntu	22m 57s
Test suite with py310-ubuntu	24m 31s
Test suite with py311-ubuntu, mypyc-compiled	21m 41s
Test suite with py312-ubuntu, mypyc-compiled	35m 34s
mypyc runtime tests with py39-macos	5m 38s
mypyc runtime tests with py38-debug-build-ubuntu	7m 59s
Type check our own code (py38-ubuntu)	2m 55s
Type check our own code (py38-windows-64)	3m 28s
Formatting and code style with Black + ruff	57s
	3h 13m 45s

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