Here’s how you delete coins from your portfolio
 
For desktop:
  1. Go to portfolio page
  2. Click on the star icon located on the left
  3. Select the portfolio with the "checked" mark
  4. You will have the option to remove the coin
 
For app:
  1. Go to portfolio page
  2. Select coin you wish to delete
  3. You will be redirected to the coin page
  4. Click on the "+" on the upper right
  5. You will have the option to remove the coin