`VERSION_INFO` is set in `setup.py` but never used anywhere

[mhucka]

What is the task?

In setup.py, there is code to define a compile-time variable VERSION_INFO:

qsim/setup.py

Lines 111 to 115 in d913ad7

	env = os.environ.copy()
	cxxflags = env.get("CXXFLAGS", "")
	env["CXXFLAGS"] = (
	f'{cxxflags} -DVERSION_INFO=\\"{self.distribution.get_version()}\\"'
	)

However, a search of the code base reveals VERSION_INFO is not used anywhere:

We can remove this dead code and simplify setup.py.

(Optional) Do you have ideas or preferences for the approach?

No response

How urgent is this for you?

None