You may customize the BRD app to only show wallets for any supported currency that you own.
Adding a wallet
Hiding a wallet
You can also go to Preferences and tap on Reset to Default Currencies if you would like to only show the default wallets. This action updates the main screen so it displays the default wallets and hides any other wallets you may have added. This action does not wipe any funds from the wallets.
NOTE: The Ethereum wallet cannot be hidden if you have an ERC20 token wallet displayed on the BRD app's main screen.