chore(studio): remove mcp mention in legacy token creation (#48945)

## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES

## What kind of change does this PR introduce?

Small bit of lingering text that was leftover.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Documentation**
* Updated the legacy access token description to remove an outdated
reference.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

apps/studio/components/interfaces/Account/AccessTokens/Scoped/Form/ResourceAccessStep.tsx

@@ -121,7 +121,7 @@ export const ResourceAccessStep = ({
             label="Resource access"
             description={
               <p className="text-foreground-lighter text-sm">
-                Need a token with full access to your account or one for the Supabase MCP server?{' '}
+                Need a token with full access to your account?{' '}
                 <button
                   type="button"
                   tabIndex={0}