It’s really a “Disable” but in Sense 6 it’s called “Remove” so lets use that word.
This isn’t a design flaw of Blinkfeed in Sense 6 as some might think. It’s just about what you have set as home screen.
This is for Sense 5.5 only, it will not work on Sense 5.0, as Sense 5.0 doesn’t have a Read it later function inside Blinkfeed.
And of course on One with 4.4 and Sense 5.5. I thought that I had written about this like a month ago, but it was just on the facebook page.
This will NOT work on HTC One, but just on One X/X+ or other phones that didn’t start life with Sense 5.
Go to Settings > Personalize > Home screen style, where you select the home screen style you want. Traditional or Blinkfeed, I have blinkfeed on myself since that is where I think that sense 5 shines. If you use it: you will start to love it.