Clenaup dependencies.

src/operations/operationEdit.component.ts

@@ -1,7 +1,7 @@
 // vim: set tw=80 ts=2 sw=2 sts=2 :
 
 import { Location } from '@angular/common';
-import { Component, ViewChild } from '@angular/core';
+import { Component } from '@angular/core';
 import { ActivatedRoute, Router, Params } from '@angular/router';
 
 import { Logger } from '@nsalaun/ng-logger';