remove cmdlet from psd1

Author: VeryEarly

src/Network/Network/Az.Network.psd1

@@ -579,7 +579,6 @@ CmdletsToExport = 'Add-AzApplicationGatewayAuthenticationCertificate',
                'Set-AzNetworkManagerSecurityAdminRule', 
                'Get-AzNetworkManagerActiveConnectivityConfigurationList', 
                'Get-AzNetworkManagerActiveSecurityAdminRuleList', 
-               'Get-AzNetworkManagerActiveSecurityUserRuleList', 
                'Get-AzNetworkManagerEffectiveConnectivityConfigurationList', 
                'Get-AzNetworkManagerEffectiveSecurityAdminRuleList', 
                'Deploy-AzNetworkManagerCommit',