functions/utils/Remove-EnvVar.ps1

function Remove-EnvVar {
    param (
        [Parameter(Mandatory = $true)]
        [string]$Name,
        [Parameter(Mandatory = $false)]
        [ValidateSet('Machine', 'Process', 'User')]
        [System.EnvironmentVariableTarget]$Target = [System.EnvironmentVariableTarget]::User
    )
    
    Set-EnvVar -Name $Name -Value $null -Target $Target
}