fix: hard code remove gns FF

Author: vinnyhoward

app/util/networks/index.js

@@ -672,8 +672,7 @@ export const getIsNetworkOnboarded = (chainId, networkOnboardedState) =>
 export const isPermissionsSettingsV1Enabled =
   process.env.MM_PERMISSIONS_SETTINGS_V1_ENABLED === 'true';
 
-export const isRemoveGlobalNetworkSelectorEnabled = () =>
-  process.env.MM_REMOVE_GLOBAL_NETWORK_SELECTOR === 'true';
+export const isRemoveGlobalNetworkSelectorEnabled = () => true;
 
 // The whitelisted network names for the given chain IDs to prevent showing warnings on Network Settings.
 export const WHILELIST_NETWORK_NAME = {