         currentLine = clearLine(currentLine)
 
   clearLine: (lineElement) =>
-    @pixelLeftCache.delete(lineElement)
     next = lineElement.nextSibling
     @renderedLines[0].removeChild(lineElement)
     next

  # fontSize - A {Number} indicating the font size in pixels.
  setFontSize: (fontSize) ->
    @css('font-size', "#{fontSize}px}")
    if @isOnDom()
      @redraw()
    else

    @pendingChanges = []
    @newCursors = []
    @newSelections = []

    if editSession?
      @edit(editSession)
