[MM-56073] MMCTL delete post command (#27539)

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>

server/cmd/mmctl/mocks/client_mock.go

@@ -417,6 +417,21 @@ func (mr *MockClientMockRecorder) DeleteOutgoingWebhook(arg0, arg1 interface{})
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DeleteOutgoingWebhook", reflect.TypeOf((*MockClient)(nil).DeleteOutgoingWebhook), arg0, arg1)
 }
 
+// DeletePost mocks base method.
+func (m *MockClient) DeletePost(arg0 context.Context, arg1 string) (*model.Response, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "DeletePost", arg0, arg1)
+	ret0, _ := ret[0].(*model.Response)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// DeletePost indicates an expected call of DeletePost.
+func (mr *MockClientMockRecorder) DeletePost(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DeletePost", reflect.TypeOf((*MockClient)(nil).DeletePost), arg0, arg1)
+}
+
 // DeletePreferences mocks base method.
 func (m *MockClient) DeletePreferences(arg0 context.Context, arg1 string, arg2 model.Preferences) (*model.Response, error) {
 	m.ctrl.T.Helper()
@@ -1750,6 +1765,21 @@ func (mr *MockClientMockRecorder) PermanentDeleteChannel(arg0, arg1 interface{})
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PermanentDeleteChannel", reflect.TypeOf((*MockClient)(nil).PermanentDeleteChannel), arg0, arg1)
 }
 
+// PermanentDeletePost mocks base method.
+func (m *MockClient) PermanentDeletePost(arg0 context.Context, arg1 string) (*model.Response, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "PermanentDeletePost", arg0, arg1)
+	ret0, _ := ret[0].(*model.Response)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// PermanentDeletePost indicates an expected call of PermanentDeletePost.
+func (mr *MockClientMockRecorder) PermanentDeletePost(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PermanentDeletePost", reflect.TypeOf((*MockClient)(nil).PermanentDeletePost), arg0, arg1)
+}
+
 // PermanentDeleteTeam mocks base method.
 func (m *MockClient) PermanentDeleteTeam(arg0 context.Context, arg1 string) (*model.Response, error) {
 	m.ctrl.T.Helper()