Pre-service teachers usually had to know something about the History of Education - both in their countries and globally - as a part of their induction into teaching up to about the 1980s.
From around this time a competences and standards regime became increasingly prominent and units/courses/even one-off lectures related to the History of Education disappeared within initial teacher education - certainly in the jurisdictions that I have worked in (England and Australia).
I will be interested to hear if History of Education continues in some countries globally.
Reactions to the death of 'History of Education' are likely to vary on a continuum between: 'good riddance - this was fairly useless knowledge which didn't help people to become better teachers' and 'a shame that teachers understand so little about the evolution of education over the past two hundred years'.
Personal stance: I have come to co-exist reasonably productively as a teacher educator with Standards regimes in both England and Australia - they can provide useful focus upon essential features and competences required of teachers......but I also feel that Standards can be instrumental and can underplay knowledge and (especially) values that underpin practice.
I have also undertaken some History of Education research on citizenship education and early Twentieth century inspection regimes, so should declare an interest that I see the 'History of Education' of having some value and importance as a field of study (but I remember being bored rigid in lectures on the topic during my own experience of initial teacher education) !