Update azure pipelines (linux)

Author: shaobin

azure-pipelines-linux.yml

@@ -25,9 +25,6 @@ pool:
   vmImage: ubuntu-22.04
 
 steps:
-- script: sudo apt update && sudo apt upgrade -y
-  displayName: 'Ensure the system is up-to-date'
-
 - script: sudo apt update && sudo apt install -y g++ cmake libssl-dev
   displayName: 'Install g++ cmake libssl-dev'