[Bug]: Money account: Purchase failure - Remove error popup from RC builds

### Describe the bug

When trying to purchase on Money Account via Transak with debit card, the order failed with the following error:

`Error: MetaMask Pay: Fiat: Fiat order failed`

### Expected behavior

Order to be successful and no error message

### Screenshots/Recordings

https://github.com/user-attachments/assets/552f96b9-e5ae-4f3c-97b6-230cd536da1b

### Steps to reproduce

1. Go to Money Account
2. Click Add
3. Select debit card
4. Enter amount
5. Click Add funds
6. Enter Card details
7. Click Confirm Order
8. Notice error

### Error messages or log output

```
Error: MetaMask Pay: Fiat: Fiat order failed
at construct (native)
at apply (native)
at _construct (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:776222)
at Wrapper (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:779983)
at call (native)
at JsonRpcError (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:3141375)
at getJsonRpcError (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:3146958)
at internal (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:3147533)
at ?anon_0_ (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:2995180)
at next (native)
at asyncGeneratorStep (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:776710)
at _next (address at /var/mobile/Containers/Data/Application/FCDDD656-22AA-4CE3-80C2-39EA18CB2EC2/Library/Application Support/.expo-internal/bundle-edeaeb1b-ea40-48a3-8560-11cbccea58ef.jsbundle:1:776967)
at tryCallOne (address at InternalBytecode.js:1:1180)
at anonymous (address at InternalBytecode.js:1:1874)

```

### Where was this bug found?

Internal release testing

### Version

8.6.0

### Build number

6325

### Build type

None

### Device

iPhone 15

### Operating system

iOS

### Additional context

_No response_

### Severity

_No response_

Reproduce the Money Account purchase flow on the reported iPhone/iOS setup using the listed steps, then trace how the Transak fiat-order failure is handled in the mobile app. Confirm whether the intended result is a successful order or suppression of the error popup in RC builds, and verify that the final flow matches that expectation.

Written by the indexing model from the issue text.