Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
#Get the web
$Web = Get-SPWeb "https://xxxx"
#Get the Target List
$List = $Web.Lists["CatsItems"]
#Retrieve all event receivers associated with the list
$List.EventReceivers | Select Id, Type, Assembly, Class
Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
#Get the web
$Web = Get-SPWeb "http://spsvde001/tools/cats"
#Get the Target List
$List = $Web.Lists["Cats Items"]
#Retrieve all event receivers associated with the list
##$List.EventReceivers #| Select Id, Type, Assembly, Class| out-file
$List.EventReceivers #| out-file C:\temp\temp.txt
$r = $List.EventReceivers | Where {$_.ID -eq "133f853e-a53c-47ff-bbae-5ff80c93da6e"}
$r.Delete()