Revert "Scrub batch shared keys (#17030)"

This reverts commit 8c726ac.

Author: tasherif-msft

sdk/storage/azure-storage-blob/tests/_shared/testcase.py

@@ -104,10 +104,6 @@ def create_resource(self, name, **kwargs):
                 storage_account.name,
                 "storagename"
             )
-            self.test_class_instance.scrubber.register_name_pair(
-                ":.{43}=\r",
-                ":fake_shared_key=\r"
-            )
         else:
             name = "storagename"
             storage_account.name = name