Temporarily remove SQL warehouse requirement from labs.yml (#604)

At the moment the Databricks CLI installer has a bug, when a `DEFAULT`
profile without `warehouse_id` is causing an installation error.

Author: nfx

labs.yml

@@ -2,8 +2,6 @@
 name: ucx
 description: Unity Catalog Migration Toolkit (UCX)
 install:
-  warehouse_types:
-    - PRO
   script: src/databricks/labs/ucx/install.py
 entrypoint: src/databricks/labs/ucx/cli.py
 min_python: 3.10