changed to "if (!this.disabled) { ... }"

Author: sllethe

src/lib/list/list-option.ts

@@ -125,7 +125,7 @@ export class MdListOption implements AfterContentInit, OnDestroy, Focusable {
   }
 
   toggle(): void {
-    if (!this._disabled && !this.selectionList.disabled) {
+    if (!this._disabled) {
       this.selected = !this.selected;
       this.selectionList.selectedOptions.toggle(this);
       this._changeDetector.markForCheck();