Revert "Use complete_with_cancellable() in file enumerator"
Revert "Use complete_with_cancellable() in file enumerator"

This reverts commit 5af6a1dbdd2c6a61b515a5bd64350db3af16dae7.

Replacing complete_in_idle() with a call that directly completes is BAD
BAD BAD.

cpatulea/gvfs,halfline/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,xkahn/gvfs-cmis,gicmo/gvfs,philipl/gvfs,halfline/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,philipl/gvfs,philipl/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,halfline/gvfs,cpatulea/gvfs