title: unistall google play service android
body: <p>good morning</p>
  
  <p>i would like to delete the google play services package from my android emulator because i tried to update it by a new version.</p>
  
  <p>When i taped this command in my terminal:
  ./adb install com.google.android.gms.apk 
  I receive this message :"install failed already exist "
  I tried to unistall this package by this command:
  ./adb -e uninstall com.google.android.gms</p>
  
  <p>It show me "failure".
  My version is 3.1.36 and i would like to install 4 version to run my android map app
  regards.....</p>