[managementgroups] Remove managementgroups extension

.github/CODEOWNERS

@@ -10,8 +10,6 @@
 
 /src/subscription/ @wilcobmsft
 
-/src/managementgroups/ @rajshah11
-
 /src/alias/ @Juliehzl
 
 /src/managementpartner/ @jeffrey-ace

src/index.json

@@ -1829,51 +1829,6 @@
                 "sha256Digest": "d420491c0b25838a2096d93a1872d54b6b482df246310383d42b94fcd080a508"
             }
         ],
-        "managementgroups": [
-            {
-                "downloadUrl": "https://files.pythonhosted.org/packages/b0/7c/fb9f79c46cf96cf7607fbaebe94d048e515342bf9e7ceae571110d85f35e/managementgroups-0.1.0-py2.py3-none-any.whl",
-                "filename": "managementgroups-0.1.0-py2.py3-none-any.whl",
-                "metadata": {
-                    "classifiers": [
-                        "Development Status :: 4 - Beta",
-                        "Intended Audience :: Developers",
-                        "Intended Audience :: System Administrators",
-                        "Programming Language :: Python",
-                        "Programming Language :: Python :: 2",
-                        "Programming Language :: Python :: 2.7",
-                        "Programming Language :: Python :: 3",
-                        "Programming Language :: Python :: 3.4",
-                        "Programming Language :: Python :: 3.5",
-                        "Programming Language :: Python :: 3.6",
-                        "License :: OSI Approved :: MIT License"
-                    ],
-                    "extensions": {
-                        "python.details": {
-                            "contacts": [
-                                {
-                                    "email": "shahraj@microsoft.com",
-                                    "name": "Raj Shah",
-                                    "role": "author"
-                                }
-                            ],
-                            "document_names": {
-                                "description": "DESCRIPTION.rst"
-                            },
-                            "project_urls": {
-                                "Home": "https://github.com/Azure/azure-cli-extensions"
-                            }
-                        }
-                    },
-                    "generator": "bdist_wheel (0.29.0)",
-                    "license": "MIT",
-                    "metadata_version": "2.0",
-                    "name": "managementgroups",
-                    "summary": "An Azure CLI Extension for Management Groups",
-                    "version": "0.1.0"
-                },
-                "sha256Digest": "14626a8fc8a0d6751bd9a9e90a62c463b3dfbdfb2952e438e3843b0941679eb3"
-            }
-        ],
         "managementpartner": [
             {
                 "downloadUrl": "https://files.pythonhosted.org/packages/28/08/0fde582cf50eaf1ef304b35674b9b22f6731d95b2e41339eba4d35583b18/managementpartner-0.1.2-py2.py3-none-any.whl",