Revert^2 "COMMON_DOC_KEY fix"

This reverts commit 4dc14eb.

Reason for revert: Suspecting the fix is required with sirius_java_sdk

Change-Id: I0ad30283df21317eadc42820008c771934ba891b
Reviewed-on: https://review.couchbase.org/c/TAF/+/244625
Tested-by: Build Bot <build@couchbase.com>
Reviewed-by: <shiva.adky@couchbase.com>

Author: ashwin2002

pytests/rebalance_new/rebalance_start_stop.py

@@ -44,6 +44,8 @@ def tearDown(self):
     def load_all_buckets(self, op_type, doc_load_percent):
         loading_spec = \
             self.bucket_util.get_crud_template_from_package("initial_load")
+        loading_spec["doc_crud"][
+            MetaCrudParams.DocCrud.COMMON_DOC_KEY] = self.key
         loading_spec["doc_crud"][
             MetaCrudParams.DocCrud.CREATE_PERCENTAGE_PER_COLLECTION] = 0
         if op_type == DocLoading.Bucket.DocOps.CREATE: