Remove topics frontmatter from education content (#59857)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: subatoi <32935794+subatoi@users.noreply.github.com>

Author: Copilot

content/education/manage-coursework-with-github-classroom/get-started-with-github-classroom/about-github-classroom.md

@@ -2,8 +2,6 @@
 title: About GitHub Classroom
 intro: 'Teachers and school administrators can use {% data variables.product.prodname_classroom %} to create virtual classrooms, make and edit assignments, automatically grade assignment submissions, and more.'
 type: overview
-topics: 
-  - Fundamentals
 versions:
   fpt: '*'
 ---

content/education/manage-coursework-with-github-classroom/teach-with-github-classroom/about-assignments.md

@@ -3,8 +3,6 @@ title: About assignments
 intro: 'You can use individual or group assignments in {% data variables.product.prodname_classroom %} to teach students and grade their work.'
 shortTitle: About assignments
 type: overview
-topics:
-  - Fundamentals
 versions:
   fpt: '*'
 ---

content/education/manage-coursework-with-github-classroom/teach-with-github-classroom/monitor-students-progress-with-the-assignment-overview-page.md

@@ -5,8 +5,6 @@ intro: You can use the assignment overview page to track the progress of each st
 versions:
     fpt: '*'
 permissions: 'Organization owners who are admins for a classroom can create and manage group assignments for a classroom. {% data reusables.classroom.classroom-admins-link %}'
-topics:
-  - Education
 ---
 
 ## About the assignment overview page