Remove random number generator hotfix

[niermann999]

As soon as acts-project/traccc#860 is merged, remove the workaround in

detray/tests/include/detray/test/utils/simulation/event_generator/random_numbers.hpp

Lines 82 to 90 in 59b52c3

	// Hotfix for the traccc wire chamber Kalman fitter CI tests: Only a
	// specific set of tracks pass the test, so detray needs to make sure
	// that these tracks are generated in the random_track_generator. This
	// means that the correct number of draws from the random number engine
	// needs to be done in order to arrive at the SAME internal state of
	// 'm_engine'. TODO: Remove once the test are stable
	if (is_zero_stddev) {
	std::normal_distribution<scalar_t>(mean, 1.f)(m_engine);
	}