Update page.mdx (#5552)

Author: DustinTurska

apps/portal/src/app/account/billing/upgrade-plan/page.mdx

@@ -87,11 +87,6 @@ To downgrade your plan from the Growth tier:
 
 The changes will be reflected on your account and in the Billing page interface, shortly. You will also receive an email confirming you have downgraded.
 
-<Callout variant="info" title="Prorated Services">
-Once the downgrade of services is processed, the account will be prorated to reflect the usage during the billing period.
-
-</Callout>
-
 </Steps>
 
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