Remove topics frontmatter from content/migrations (#59906)

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/migrations/importing-source-code/using-the-command-line-to-import-source-code/importing-from-other-version-control-systems-with-the-administrative-shell.md

@@ -9,9 +9,6 @@ redirect_from:
 versions:
   ghes: '*'
 type: how_to
-topics:
-  - Enterprise
-  - Migration
 shortTitle: Administrative shell
 permissions: Site administrators can use the administrative shell to import data from other version control systems.
 ---

content/migrations/index.md

@@ -22,12 +22,6 @@ versions:
   fpt: '*'
   ghec: '*'
   ghes: '*'
-topics:
-  - Administrator
-  - Enterprise
-  - Migration
-  - Organizations
-  - Repositories
 children:
   - /overview
   - /ado

content/migrations/using-ghe-migrator/about-ghe-migrator.md

@@ -11,9 +11,6 @@ versions:
   ghec: '*'
   ghes: '*'
 type: overview
-topics:
-  - Enterprise
-  - Migration
 ---
 
 ## Types of migrations

content/migrations/using-ghe-migrator/exporting-migration-data-from-github-enterprise-server.md

@@ -16,10 +16,6 @@ versions:
   ghec: '*'
   ghes: '*'
 type: how_to
-topics:
-  - API
-  - Enterprise
-  - Migration
 shortTitle: Export from GHES
 ---
 

content/migrations/using-ghe-migrator/exporting-migration-data-from-githubcom.md

@@ -16,10 +16,6 @@ versions:
   ghec: '*'
   ghes: '*'
 type: how_to
-topics:
-  - API
-  - Enterprise
-  - Migration
 shortTitle: Export from GitHub.com
 ---
 ## Preparing the source organization on {% data variables.product.prodname_dotcom %}

content/migrations/using-ghe-migrator/index.md

@@ -11,8 +11,6 @@ versions:
   fpt: '*'
   ghec: '*'
   ghes: '*'
-topics:
-  - Enterprise
 children:
   - /about-ghe-migrator
   - /exporting-migration-data-from-github-enterprise-server

content/migrations/using-ghe-migrator/migrating-data-to-github-enterprise-server.md

@@ -19,9 +19,6 @@ versions:
   ghec: '*'
   ghes: '*'
 type: how_to
-topics:
-  - Enterprise
-  - Migration
 shortTitle: Migrate data
 ---