Removes duplicate parameter

Author: chris-young-helius

openapi/admin-api/getProjectUsage.yaml

@@ -157,12 +157,6 @@ paths:
             type: string
             format: uuid
             example: "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
-        - name: api-key
-          in: query
-          required: false
-          description: Your Helius API key. Can also be provided via the `X-Api-Key` header.
-          schema:
-            type: string
       responses:
         '200':
           description: Project usage retrieved successfully.