[all hosts] Update product metadata (#322)

* [all hosts] Update product metadata

* Remove file-specific product metadata

Author: ElizabethSamuel-MSFT

docs/docfx.json

@@ -115,9 +115,7 @@
       "open_source_feedback_productName": "Office Scripts",
       "titleSuffix": "Office Scripts",
       "ms.devlang": "typescript",
-      "product": [
-        "office 365"
-      ],
+      "product": ["office", "office-excel"],
       "products": [
         "https://authoring-docs-microsoft.poolparty.biz/devrel/60932d05-feee-4685-a73b-595e25dd9318",
         "https://authoring-docs-microsoft.poolparty.biz/devrel/6ab06385-661e-4214-8870-bbe4071c960d"
@@ -136,11 +134,6 @@
       "feedback_product_url": {
         "docs-ref-conceptual/**/*": "/answers/tags/321/office-development"
       },
-      "product": {
-        "docs-ref-autogen/excel/**": [
-          "office scripts"
-        ]
-      },
       "ms.topic": {
         "docs-ref-autogen/**": "language-reference"
       }