style(billing): make comments concise

app/javascript/dashboard/api/enterprise/account.js

@@ -28,8 +28,7 @@ class EnterpriseAccountAPI extends ApiClient {
     return axios.post(`${this.url}topup_checkout`, { credits });
   }
 
-  // Returns { currency, options: [{ credits, amount, currency }] } for the
-  // account's billing currency, sourced from CHATWOOT_CLOUD_TOPUP_OPTIONS.
+  // Topup packages for the account's billing currency.
   getTopupOptions() {
     return axios.get(`${this.url}topup_options`);
   }

app/javascript/dashboard/routes/dashboard/settings/billing/components/PurchaseCreditsModal.vue

@@ -25,8 +25,7 @@ const selectedCredits = ref(null);
 const isLoading = ref(false);
 const currentStep = ref(STEP_SELECT);
 
-// Topup packages come from the backend (CHATWOOT_CLOUD_TOPUP_OPTIONS) for the
-// account's billing currency — only the relevant currency's options are shown.
+// Topup packages come from the backend for the account's billing currency.
 const topupOptions = ref([]);
 const optionsCurrency = ref(DEFAULT_BILLING_CURRENCY);
 const isFetchingOptions = ref(false);