Remove unused imports

Author: Yousef Ouda

src/dialog/tooltip/tooltip.component.ts

@@ -2,7 +2,6 @@ import {
 	Component,
 	TemplateRef,
 	HostBinding,
-	HostListener,
 	Input
 } from "@angular/core";
 import { getFocusElementList } from "./../../common/tab.service";

src/dialog/tooltip/tooltip.directive.ts

@@ -6,8 +6,7 @@ import {
 	Injector,
 	ComponentFactoryResolver,
 	ViewContainerRef,
-	HostBinding,
-	HostListener
+	HostBinding
 } from "@angular/core";
 import { DialogDirective } from "./../dialog.directive";
 import { Tooltip } from "./tooltip.component";