use-strict not needed

Author: borysn

frontend/src/app/calendar/calendar.component.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import { Component } from '@angular/core';
 import { ROUTER_DIRECTIVES } from '@angular/router';
 import { AlertComponent, DATEPICKER_DIRECTIVES } from 'ng2-bootstrap/ng2-bootstrap';

frontend/src/app/hello/hello.component.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import { Component } from '@angular/core';
 import { CORE_DIRECTIVES } from '@angular/common';
 import { ROUTER_DIRECTIVES } from '@angular/router';

frontend/src/app/hello/hello.service.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import { Injectable, Inject } from '@angular/core';
 import { Http, Response } from '@angular/http';
 import 'rxjs/add/operator/map';

frontend/src/app/home/home.component.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import { Component } from '@angular/core';
 import { ROUTER_DIRECTIVES } from '@angular/router';