Remove portfolio API card from data overview

Author: SahilAujla

fern/api-reference/data/data-overview.mdx

@@ -20,10 +20,6 @@ The Data APIs give you fast, reliable access to blockchain data without running
 ## Components of the Data APIs
 
 <CardGroup cols={3}>
-  <Card title="Portfolio API" icon="fa-solid fa-chart-pie" href="/docs/reference/portfolio-apis">
-    Build a complete portfolio view of a user’s wallet, across tokens and NFTs.
-  </Card>
-
   <Card title="Token API" icon="fa-solid fa-coins" href="/docs/reference/token-api-quickstart">
     Easily request information about specific tokens like metadata or wallet balances.
   </Card>