chore(vscode): remove unused kurtosis-stop task from tasks.json

Author: tosettil-polimi

.vscode/tasks.json

@@ -1,21 +1,6 @@
 {
   "version": "2.0.0",
   "tasks": [
-    {
-      "label": "kurtosis-stop",
-      "type": "shell",
-      "command": "kurtosis enclave stop assertoor || true",
-      "group": "build",
-      "presentation": {
-        "echo": true,
-        "reveal": "always",
-        "focus": false,
-        "panel": "shared",
-        "showReuseMessage": true,
-        "clear": false
-      },
-      "problemMatcher": []
-    },
     {
       "label": "kurtosis-remove",
       "type": "shell",