Removes unused usings

Author: eamodio

src/views/lineHistoryView.ts

@@ -3,9 +3,8 @@ import { commands, ConfigurationChangeEvent } from 'vscode';
 import { configuration, LineHistoryViewConfig, ViewsConfig } from '../configuration';
 import { CommandContext, setCommandContext } from '../constants';
 import { Container } from '../container';
-import { LineHistoryTrackerNode, ViewNode } from './nodes';
+import { LineHistoryTrackerNode } from './nodes';
 import { RefreshReason, ViewBase } from './viewBase';
-import { RefreshNodeCommandArgs } from './viewCommands';
 
 export class LineHistoryView extends ViewBase<LineHistoryTrackerNode> {
     constructor() {

src/views/nodes/statusFileNode.ts

@@ -1,6 +1,6 @@
 'use strict';
 import * as paths from 'path';
-import { Command, ThemeIcon, TreeItem, TreeItemCollapsibleState, Uri } from 'vscode';
+import { Command, ThemeIcon, TreeItem, TreeItemCollapsibleState } from 'vscode';
 import { Commands, DiffWithPreviousCommandArgs } from '../../commands';
 import { Container } from '../../container';
 import {

src/views/repositoriesView.ts

@@ -4,9 +4,7 @@ import { configuration, RepositoriesViewConfig, ViewFilesLayout, ViewsConfig } f
 import { CommandContext, setCommandContext, WorkspaceState } from '../constants';
 import { Container } from '../container';
 import { RepositoriesNode } from './nodes';
-import { ViewNode } from './nodes/viewNode';
 import { RefreshReason, ViewBase } from './viewBase';
-import { RefreshNodeCommandArgs } from './viewCommands';
 
 export class RepositoriesView extends ViewBase<RepositoriesNode> {
     constructor() {