>>1190680open ublock settings (click the icon and click the gear icon on the bottom right) and click 'my filters'. paste this:
www.youtube.com##.ytd-video-view-count-renderer.style-scope.view-count
into the whitespace on its own line and click apply changes. that will hide the views on the video itself, like in your screenshot. to hide views everywhere else, like on the main page and search pages, you also need to use this:
www.youtube.com##span.ytd-video-meta-block.style-scope:nth-of-type(1)