gh-116738: remove multiprocessing suppressions

[kumaraditya303]

• Issue: Audit all built-in modules for thread safety #116738

[kumaraditya303]

@colesbury Both of these functions are thread safe now as they use critical sections so this removes the redundant suppressions

cpython/Modules/_multiprocessing/semaphore.c

Lines 179 to 188 in a09c2b2

	@critical_section
	_multiprocessing.SemLock.release
	Release the semaphore/lock.
	[clinic start generated code]*/
	static PyObject *
	_multiprocessing_SemLock_release_impl(SemLockObject *self)
	/*[clinic end generated code: output=b22f53ba96b0d1db input=9bd62d3645e7a531]*/
	{