Dodanie usuniecie kursu.

Signed-off-by: Marcin Woźniak <y0rune@aol.com>

buisnesslogic/src/main/java/com/plannaplan/services/CourseService.java

@@ -25,6 +25,10 @@ public class CourseService {
         this.repo.save(course);
     }
 
+    public void remove(Course course){
+        this.repo.delete(course);
+    }
+
     public int getCoursesAmmount(){
         return (int)this.repo.count();
     }