fix(stripe): remove obsolete MPP metadata (#816)

Committed-By-Agent: codex

Co-authored-by: codex <noreply@openai.com>

Author: raubrey-stripe

.changeset/remove-stripe-mpp-metadata.md

@@ -0,0 +1,5 @@
+---
+'mppx': patch
+---
+
+Removed obsolete MPP version metadata from Stripe charge PaymentIntents.

src/stripe/server/Charge.test.ts

@@ -207,7 +207,8 @@ describe('stripe.charge with client', () => {
 
     const [params] = create.mock.calls[0]!
     expect(params.metadata).toMatchObject({ plan: 'pro' })
-    expect(params.metadata.mpp_is_mpp).toBe('true')
+    expect(params.metadata).not.toHaveProperty('mpp_is_mpp')
+    expect(params.metadata).not.toHaveProperty('mpp_version')
   })
 
   test('behavior: applies Connect settlement parameters in client call', async () => {

src/stripe/server/Charge.ts

@@ -432,8 +432,6 @@ function buildAnalytics(parameters: { credential: Credential.Credential }): Reco
   const { credential } = parameters
   const { challenge } = credential
   return {
-    mpp_version: '1',
-    mpp_is_mpp: 'true',
     mpp_intent: challenge.intent,
     mpp_challenge_id: challenge.id,
     mpp_server_id: challenge.realm,