msteams: don't worry if reg key isn't there to be deleted in the remove cmd

packages/msteams.xml

@@ -19,7 +19,9 @@
 
     <remove cmd='msiexec /qn /x {%msi_guid%}' />
     <!-- uninstaller doesn't delete the uninstall key for some reason and yes, even though we install the x64 version the uninstall is x86.  See URL at top for this issue being reported -->
-    <remove cmd='reg delete HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{%msi_guid%} /f' />
+    <remove cmd='reg delete HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{%msi_guid%} /f'>
+      <exit code="1"/> <!-- don't make wpkg error if key does not exist though -->
+    </remove>
     <remove cmd='cscript %WPKGSOFTWARE%\wpkg\tools\delete-shortcut.js /folder:"Microsoft Teams" ' />
 
   </package>