There are different reasons you would want to remove the currency switcher dropdown from Magento 2 storefront.
For example, you may want to remove it because you use Magento 2 Automatic Currency Switcher and don't want to allow customers to manually change a currency.
In order to remove the currency switcher dropdown follow these steps:
1. Create a new file inside your storefront theme folder:
app/design/frontend/ThemeVendor/ThemeName/Magento_Theme/layout/default.xml
2. Add this code into it:
In case you already have Magento_Theme/layout/default.xml file, then edit it and put this code before
