Temporarily remove Apache 2.0 license from the VSCode extension (#171)

Remove license terms from the VSCode extension until we have a final
decision on the licensing.

Please revert if we decide to go with Apache 2.0

Author: fjakobs

packages/databricks-vscode/LICENSE

@@ -67,10 +67,6 @@ Fixed issue #.
 
 Added features X, Y, and Z.
 
-## License
-
-The **Databricks extension for Visual Studio Code** is distributed under the [Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0).
-
 ---
 
 ## Following extension guidelines

packages/databricks-vscode/README.md

@@ -3,7 +3,7 @@
     "displayName": "Databricks for Visual Studio Code",
     "description": "IDE support for Databricks",
     "publisher": "databricks",
-    "license": "Apache-2.0",
+    "license": "UNLICENSED",
     "version": "0.0.1",
     "engines": {
         "vscode": "^1.69.1"