Remove unneeded launch configuration

Just invoke the clean task first if you want to rebuild
PowerShellEditorServices. Also put `problemMatcher` back into the tasks
so as to stop Visual Studio Code from asking the user which to use.

Author: andyleejordan

.vscode/launch.json

@@ -16,21 +16,6 @@
       ],
       "preLaunchTask": "Build"
     },
-    {
-      "name": "Launch Extension (Build client only)",
-      "type": "extensionHost",
-      "request": "launch",
-      "runtimeExecutable": "${execPath}",
-      "args": [
-        "--extensionDevelopmentPath=${workspaceFolder}"
-      ],
-      "stopOnEntry": false,
-      "sourceMaps": true,
-      "outFiles": [
-        "${workspaceFolder}/out/src/**/*.js"
-      ],
-      "preLaunchTask": "Build"
-    },
     {
       "name": "Launch Extension Tests",
       "type": "extensionHost",

.vscode/tasks.json

@@ -40,28 +40,33 @@
       "label": "Restore",
       "type": "shell",
       "command": "Invoke-Build Restore",
+      "problemMatcher": []
     },
     {
       "label": "Clean",
       "type": "shell",
       "command": "Invoke-Build Clean",
+      "problemMatcher": []
     },
     {
       "label": "Build",
       "type": "shell",
       "command": "Invoke-Build Build",
-      "group": "build",
+      "problemMatcher": [],
+      "group": "build"
     },
     {
       "label": "Test",
       "type": "shell",
       "command": "Invoke-Build Test",
-      "group": "test",
+      "problemMatcher": [],
+      "group": "test"
     },
     {
       "label": "Package",
       "type": "shell",
       "command": "Invoke-Build Package",
+      "problemMatcher": [],
       "group": "build"
     }
   ]