Remove code which was causing proxy crash

Crash could be reproduced with e.g.:
```
people = realm.objects(Person);
peopleProxy = new Proxy(people, {get: () => {} });
Object.prototype.toString.call(peopleProxy);
```

.vscode/launch.json

@@ -117,7 +117,22 @@
             ],
             "cwd": "${workspaceFolder}/integration-tests/tests",
             "preLaunchTask": "Build Node Tests"
-        }
+        },
+        {
+            "name": "(lldb) Node Debug",
+            "type": "lldb",
+            "request": "launch",
+            "program": "/Users/tom.duncalf/dev/node-v16.13.2/out/Debug/node",
+            "args": [
+              "--expose-internals",
+            //   "test.js"
+            ],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": true,
+            "MIMode": "lldb"
+          }
     ],
     "compounds": [
         {

src/node/node_class.hpp

@@ -934,8 +934,8 @@ Napi::Value WrappedObject<ClassType>::ProxyHandler::get_own_property_descriptor_
     Napi::EscapableHandleScope scope(env);
 
     // Napi::Object target = info[0].As<Napi::Object>();
-    Napi::String key = info[1].As<Napi::String>();
-    std::string text = key;
+    // Napi::String key = info[1].As<Napi::String>();
+    // std::string text = key;
 
     Napi::Object descriptor = Napi::Object::New(env);
     descriptor.Set("enumerable", Napi::Boolean::New(env, true));