Remove a single property from DOM element "style" attribute

removeStyleProp.js

const removeStyleProp = (elm, prop) => 
  elm.style.cssText = elm.style.cssText  // cssText automatically (luckily) adds spaces between declarations
    .split('; ')
    .filter(p => !p.startsWith(prop) )
    .join(';');

Usage: (demo)

removeStyleProp(document.body, 'right')

multi-props removal:

const removeStyleProp = (elm, props) => 
  elm.style.cssText = elm.style.cssText.split('; ') 
    .filter(sp => props.every(p => !sp.startsWith(p)) ) 
    .join(';');