Remove unused /azure related code (#1127)

Author: alexweininger

package.json

@@ -131,11 +131,6 @@
                 "title": "%azureResourceGroups.uploadToCloudShell%",
                 "category": "Azure"
             },
-            {
-                "command": "azureResourceGroups.maintainCloudShellConnection",
-                "title": "Maintain Cloud Shell connection",
-                "category": "Azure"
-            },
             {
                 "command": "azureResourceGroups.signInToTenant",
                 "title": "%azureResourceGroups.signInToTenant%",
@@ -598,10 +593,6 @@
                     "command": "azureResourceGroups.uploadFileCloudConsole",
                     "when": "isWorkspaceTrusted"
                 },
-                {
-                    "command": "azureResourceGroups.maintainCloudShellConnection",
-                    "when": "never"
-                },
                 {
                     "command": "azureResourceGroups.showGroupOptions",
                     "when": "never"

src/commands/cloudShell.ts

@@ -18,7 +18,6 @@ import { TenantTreeItem } from '../tree/tenants/TenantTreeItem';
 import { logIn } from './accounts/logIn';
 import { SelectSubscriptionOptions, selectSubscriptions } from './accounts/selectSubscriptions';
 import { clearActivities } from './activities/clearActivities';
-import { maintainCloudShellConnection } from './cloudShell';
 import { createResource } from './createResource';
 import { createResourceGroup } from './createResourceGroup';
 import { deleteResourceGroupV2 } from './deleteResourceGroup/v2/deleteResourceGroupV2';
@@ -39,8 +38,6 @@ import { viewProperties } from './viewProperties';
 export function registerCommands(): void {
     registerCommand('azureResourceGroups.uploadFileCloudConsole', uploadFileToCloudShell);
 
-    registerCommand('azureResourceGroups.maintainCloudShellConnection', maintainCloudShellConnection);
-
     // Special-case refresh that ignores the selected/focused node and always refreshes the entire tree. Used by the refresh button in the tree title.
     registerCommand('azureResourceGroups.refreshTree', () => ext.actions.refreshAzureTree());
     registerCommand('azureWorkspace.refreshTree', () => ext.actions.refreshWorkspaceTree());