avoid double-settling Promise in checkWalletAvailability

TapAndPay environment Task invokes onComplete for both success and failure; our handler always resolve()d there, then also reject()d in addOnFailureListener. On failures this meant the same React Native Promise could be settled twice (resolve then reject), causing “Promise already settled” warnings and flaky JS-side behavior. Handle the result in a single callback and resolve once with task.isSuccessful.

(cherry picked from commit 6acaa43e50bc63f4ae48746849b36d2f00fe6d48)

Author: MegaManSec

android/src/main/java/com/expensify/wallet/WalletModule.kt

@@ -107,14 +107,7 @@ class WalletModule internal constructor(context: ReactApplicationContext) :
   @ReactMethod
   override fun checkWalletAvailability(promise: Promise) {
     tapAndPayClient.environment.addOnCompleteListener { task ->
-      if (task.isSuccessful) {
-        promise.resolve(true)
-      } else {
-        promise.resolve(false)
-      }
-    }.addOnFailureListener { e ->
-      promise.reject(E_OPERATION_FAILED, "Checking Wallet availability failed: ${e.localizedMessage}")
-    }
+      promise.resolve(task.isSuccessful)
   }
 
   @ReactMethod