fixed tense

Author: MGoedtel

articles/azure-arc/servers/manage-agent.md

@@ -273,7 +273,7 @@ $env:https_proxy = [System.Environment]::GetEnvironmentVariable("https_proxy","M
 Restart-Service -Name himds
 ```
 
-To configure the agent to stop communicating through a proxy server, run the following command to removes the proxy server environmental variable and restart the agent service:
+To configure the agent to stop communicating through a proxy server, run the following command to remove the proxy server environmental variable and restart the agent service:
 
 ```powershell
 [Environment]::SetEnvironmentVariable("https_proxy",$null,"Machine")