Remove onExp tag from nativel locator experiment and making it default

Author: cwebster-99

package.json

@@ -573,16 +573,12 @@
                     "type": "string"
                 },
                 "python.locator": {
-                    "default": "js",
+                    "default": "native",
                     "description": "%python.locator.description%",
                     "enum": [
                         "js",
                         "native"
                     ],
-                    "tags": [
-                        "onExP",
-                        "preview"
-                    ],
                     "scope": "machine",
                     "type": "string"
                 },