SharePoint Online: Hide a Ribbon Button using Custom Action in PowerShell

#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
  
#Set parameter values
$SiteURL="https://Crescent.sharepoint.com/"
$ListName ="Team Documents"
$Location = "Ribbon.Documents.New.NewDocument"
$CustomActionTitle ="HideNewButton"

Try{
    #Get Credentials to connect
    $Cred= Get-Credential
    $Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.Username, $Cred.Password)
  
    #Setup the context
    $Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
    $Ctx.Credentials = $Credentials

    #Get the List
    $List = $Ctx.Web.lists.GetByTitle($ListName)

    #Get Existing Custom Actions
    $UserCustomActions= $List.UserCustomActions
    $Ctx.Load($UserCustomActions)
    $Ctx.ExecuteQuery()

    #Check if the CustomAction Exists already
    $CustomAction = $UserCustomActions | Where { $_.Title -eq $CustomActionTitle }

    If($CustomAction -eq $Null)
    {
        #Add new custom action
        $UserCustomAction = $List.UserCustomActions.Add()

        #Set the Properties of the custom action
        $UserCustomAction.Name = $CustomActionTitle
        $UserCustomAction.Title = $CustomActionTitle
        $UserCustomAction.Location = "CommandUI.Ribbon" 
        $UserCustomAction.CommandUIExtension = "<CommandUIExtension><CommandUIDefinitions><CommandUIDefinition Location='$($Location)'/></CommandUIDefinitions></CommandUIExtension>"
        $UserCustomAction.Sequence = 1000
        #$UserCustomAction.RegistrationType = "List" # On Web or Site Scope, Use these two properties
        #$UserCustomAction.RegistrationId = 101
        $UserCustomAction.Update()
        $Ctx.ExecuteQuery()

        Write-Host -f Green "Custom Action Added Successfully!"
    }
    Else
    {
         write-host -f Yellow "Custom Custom Already Exists!"
    }
}
Catch {
        write-host -f Red "Error Adding Custom Action!" $_.Exception.Message
}

#Set parameter values
$SiteURL="https://Crescent.sharepoint.com/"
$ListName ="Team Documents"
$CustomActionTitle="HideNewButton"

Try{
    #Get Credentials to connect
    $Cred= Get-Credential
    $Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.Username, $Cred.Password)
  
    #Setup the context
    $Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
    $Ctx.Credentials = $Credentials

    #Get Existing Custom Actions
    $List = $Ctx.Web.lists.GetByTitle($ListName)
    $UserCustomActions= $List.UserCustomActions
    $Ctx.Load($UserCustomActions)
    $Ctx.ExecuteQuery()

    #Check if the CustomAction Exists
    $CustomActions = $UserCustomActions | Where { $_.Title -eq $CustomActionTitle }

    If($CustomActions -ne $Null)
    {
        ForEach($CustomAction in $CustomActions)
        {
            $CustomAction.Deleteobject()
            Write-Host -f Green "Custom Action Removed Successfully:" $CustomAction.Name
        }
        $Ctx.ExecuteQuery()
    }
    Else
    {
         write-host -f Yellow "Custom Actions Does Not Found!"
    }
}
Catch {
        write-host -f Red "Error Removing Custom Action!" $_.Exception.Message
}