Removed most PHP articles. (#1040)

Co-authored-by: Lex Li <[email protected]>

.openpublishing.redirection.json

@@ -65,11 +65,6 @@
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     },
-    {
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-      "redirect_url": "/troubleshoot/developer/webapps/iis/health-diagnostic-performance/troubleshoot-php-with-failed-request-tracing",
-      "redirect_document_id": false
-    },
     {
       "source_path": "iis/troubleshoot/diagnosing-http-errors/troubleshooting-http-5022-bad-gateway-error-in-cgi-applications.md",
       "redirect_url": "/troubleshoot/developer/webapps/iis/health-diagnostic-performance/troubleshoot-502-2-bad-gateway-error-in-cgi-apps",
@@ -130,36 +125,11 @@
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       "redirect_document_id": false
     },
-    {
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-      "redirect_document_id": false
-    },
-    {
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-      "redirect_document_id": false
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-    {
-      "source_path": "iis/application-frameworks/install-and-configure-php-on-iis/index.md",
-      "redirect_url": "/iis/application-frameworks/install-and-configure-php-on-iis/configuring-the-fastcgi-extension-for-iis-60",
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     {
       "source_path": "iis/application-frameworks/running-classic-asp-applications-on-iis-7-and-iis-8/index.md",
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