Revert "goffice: it is in gnome3 now."

This reverts commit f65272fe7e98fbc89d0e1c1611eb28836faa6340.
Revert "abiword: it is in gnome3 now."

This reverts commit a0473613b7f174f66970bea8dfffaec8865c5c02.
Revert "gnumeric: it is in gnome3 now."

This reverts commit 80e4b769f0d2cb04e23bff72a35d70d2d62ead06.