As this is an issue of copyright violation, I don't have any issue with this. A DMCA complaint fixes just this.
A few years ago I got an email from a TA in a subject I took the year before, that they wanted me to take down solutions I hosted on Github. However, there was no provided code in the assignment, and it was basically implementations of previously known algorithms (A* among others). Not a formal takedown request, but they said I should understand that they had to use the same assignments each year, and if I were providing solutions this could be hard. My answer was that if they are worried about plagiarism, it's better that my solutions are public, as they can be checked against.
A few years ago I got an email from a TA in a subject I took the year before, that they wanted me to take down solutions I hosted on Github. However, there was no provided code in the assignment, and it was basically implementations of previously known algorithms (A* among others). Not a formal takedown request, but they said I should understand that they had to use the same assignments each year, and if I were providing solutions this could be hard. My answer was that if they are worried about plagiarism, it's better that my solutions are public, as they can be checked against.