STEP 1. Go to your Shopify Admin, select Online Store.
STEP 2. On the right portion of the page, select your 3.0 theme, and click on Actions.
STEP 3. Select Edit languages from the drop-down list.
STEP 4. Navigate the Cart menu.
STEP 5. Scroll down and remove the text in the Custom currency HTML field.
STEP 6. Located on the upper right portion of the page, tap the Save button to apply changes.