Revert "Create MAML2Yaml subfolder to store monikerMapping.json (#336)" (#351)

This reverts commit 804d434.

Author: Saisang

.openpublishing.publish.config.json

@@ -36,7 +36,7 @@
       "docset_name": "PowerShell-Docs-DSC",
       "locale": "en-us",
       "monikerPath": [
-        "mapping/MAML2Yaml/monikerMapping.json"
+        "mapping/monikerMapping.json"
       ],
       "moniker_ranges": [],
       "monikers": [],