Remove sync-onedrive shell alias

Use rclone mount rather than syncing anyway, more robust to changes
from multiple machines

system/work.nix

@@ -12,6 +12,5 @@
         proton.primary = lib.mkForce false;
         outlook.primary = lib.mkForce true;
       };
-      home.shellAliases.sync-onedrive = "rclone copy -P OneDrive: ~/Documents/OneDrive && rclone sync -P ~/Documents/OneDrive OneDrive:";
     };
 }