fix(schema): remove "exclusive" browser status (mdn#27940)

Author: Bashamega

schemas/browsers-schema.md

@@ -69,7 +69,6 @@ The `releases` object contains data regarding the browsers' releases, using the
 - A mandatory `status` property indicating where in the lifetime cycle this release is in. It's an enum accepting these values:
   - `retired`: This release is no longer supported (EOL). For NodeJS and Deno, every minor/patch release aside from the latest within the major release is considered "retired".
   - `current`: This release is the official latest release.
-  - `exclusive`: This is an exclusive release (for example on a flagship device), not generally available.
   - `beta`: This release will the next official release.
   - `nightly`: This release is the current alpha / experimental release (like Firefox Nightly, Chrome Canary).
   - `esr`: This release is an Extended Support Release or Long Term Support release.

schemas/browsers.schema.json

@@ -22,15 +22,7 @@
 
     "browser_status": {
       "type": "string",
-      "enum": [
-        "retired",
-        "current",
-        "exclusive",
-        "beta",
-        "nightly",
-        "esr",
-        "planned"
-      ]
+      "enum": ["retired", "current", "beta", "nightly", "esr", "planned"]
     },
 
     "browsers": {