Remove unused variable and event propagation from embeds (slab#1665)

Author: mmitis

blots/scroll.js

@@ -3,7 +3,6 @@ import Emitter from '../core/emitter';
 import Block, { BlockEmbed } from './block';
 import Break from './break';
 import Container from './container';
-import CodeBlock from '../formats/code';
 
 
 function isLine(blot) {

core/selection.js

@@ -48,7 +48,6 @@ class Selection {
         blot.domNode.classList.add('ql-embed-selected');
         const range = new Range(blot.offset(scroll), blot.length());
         this.setRange(range, Emitter.sources.USER);
-        e.stopPropagation();
       }
     });
     let mouseCount = 0;