Delete redundant redirection entries

Removed multiple redirection entries for Azure Spring Apps articles.

Author: Saisang

.openpublishing.redirection.json

@@ -1,45 +1,5 @@
 {
   "redirections": [
-    {
-      "source_path": "articles/migrate/concepts-azure-spring-apps-assessment-calculation.md",
-      "redirect_url": "/azure/migrate",
-      "redirect_document_id": false,
-      "monikers": [
-        "migrate"
-      ]
-    },
-    {
-      "source_path": "articles/migrate/how-to-create-azure-spring-apps-assessment.md",
-      "redirect_url": "/azure/migrate",
-      "redirect_document_id": false,
-      "monikers": [
-        "migrate"
-      ]
-    },
-    {
-      "source_path": "articles/migrate/troubleshoot-spring-boot-discovery.md",
-      "redirect_url": "/azure/migrate",
-      "redirect_document_id": false,
-      "monikers": [
-        "migrate"
-      ]
-    },
-    {
-      "source_path": "articles/migrate/tutorial-assess-spring-boot.md",
-      "redirect_url": "/azure/migrate",
-      "redirect_document_id": false,
-      "monikers": [
-        "migrate"
-      ]
-    },
-    {
-      "source_path": "articles/migrate/tutorial-discover-spring-boot.md",
-      "redirect_url": "/azure/migrate",
-      "redirect_document_id": false,
-      "monikers": [
-        "migrate"
-      ]
-    },
     {
       "source_path": "articles/azure-functions/functions-proxies.md",
       "redirect_url": "/previous-versions/azure/azure-functions/functions-proxies",