docs(chips): remove example from component jsdoc (#6888)

* docs(chips): close md-chip tag

* remove example

Author: andrewseguin

src/lib/chips/chip-list.ts

@@ -29,13 +29,6 @@ import {coerceBooleanProperty} from '@angular/cdk/coercion';
 
 /**
  * A material design chips component (named ChipList for it's similarity to the List component).
- *
- * Example:
- *
- *     <md-chip-list>
- *       <md-chip>Chip 1<md-chip>
- *       <md-chip>Chip 2<md-chip>
- *     </md-chip-list>
  */
 @Component({
   moduleId: module.id,