feat: remove unused ref campus

SqlData/Domain/Schedule/Campus.cs

@@ -9,6 +9,5 @@ public class Campus
     public string? FullName { get; set; }
     public string? Address { get; set; }
 
-    public List<Faculty>? Faculties { get; set; }
     public List<LectureHall>? LectureHalls { get; set; }
 }

SqlData/Domain/Schedule/Faculty.cs

@@ -7,8 +7,5 @@ public class Faculty
     public int Id { get; set; }
     public required string Name { get; set; }
 
-    public int? CampusId { get; set; }
-    public Campus? Campus { get; set; }
-
     public List<Group>? Groups { get; set; }
 }