Remove redundant code

Author: ianthirdweb

apps/portal/src/app/insight/supported-chains/page.mdx

@@ -1,14 +1,5 @@
 import { createMetadata } from "@doc";
 
-export const metadata = createMetadata({
-	image: {
-		title: "thirdweb Pay - Supported Chains",
-		icon: "thirdweb",
-	},
-	title: "thirdweb Pay - Supported Chains | thirdweb",
-	description: "List of chains supported by Pay.",
-});
-
 export const metadata = createMetadata({
 	title: "thirdweb Insight - Supported Chains",
 	description: "List of chains indexed by thirdweb Insight.",