fix: cleanup wallet push notification subscription (#19014)

fixes #19012

### Summary

The legacy wallet code was removed here -> https://github.com/status-im/status-mobile/pull/18749
as part of that purge we also cleaned up re-frame subscriptions for wallet push notifications.

Since the new wallet is under active development we would not need this toggle in settings just yet.

This commit fixes the app crashing on settings UI.

## Platforms
- Android
- iOS

src/legacy/status_im/ui/screens/notifications_settings/views.cljs

@@ -8,24 +8,6 @@
     [utils.i18n :as i18n]
     [utils.re-frame :as rf]))
 
-(defn local-notifications
-  []
-  (let [{:keys [enabled?]}               (rf/sub [:push-notifications/wallet-transactions])
-        {:keys [notifications-enabled?]} (rf/sub [:profile/profile])]
-    [:<>
-     [quo/separator
-      {:color (:ui-02 @colors/theme)
-       :style {:margin-vertical 8}}]
-     [quo/list-header (i18n/label :t/local-notifications)]
-     [list.item/list-item
-      {:size                :small
-       :title               (i18n/label :t/notifications-transactions)
-       :accessibility-label :notifications-button
-       :active              (and notifications-enabled? enabled?)
-       :on-press            #(rf/dispatch [:push-notifications.wallet/switch-transactions
-                                           (not enabled?)])
-       :accessory           :switch}]]))
-
 (defn notifications-settings-ios
   []
   (let [{:keys [notifications-enabled?
@@ -63,8 +45,7 @@
        :on-press            #(rf/dispatch
                               [:push-notifications/switch-block-mentions
                                (not push-notifications-block-mentions?)])
-       :accessory           :switch}]
-     [local-notifications]]))
+       :accessory           :switch}]]))
 
 (defn notifications-settings-android
   []
@@ -76,8 +57,7 @@
        :subtitle            (i18n/label :t/local-notifications-subtitle)
        :active              notifications-enabled?
        :on-press            #(rf/dispatch [:push-notifications/switch (not notifications-enabled?)])
-       :accessory           :switch}]
-     [local-notifications]]))
+       :accessory           :switch}]]))
 
 (defn notifications-settings
   []