amtk: revert dependency

This fixes #2 (closed)

Revert "amtk: create GtkShortcutsWindow with Amtk"

This reverts commit 6461a575.

Revert "amtk: call amtk_init/finalize()"

This reverts commit 630acca6.

Revert "amtk: use amtk_action_info_store_set_all_accels_to_app()"

This reverts commit 7657544c.

Revert "amtk: add accels to the AmtkActionInfo's"

This reverts commit fb80af1c.

Revert "amtk: use sanity checks"

This reverts commit 1947772e.

Revert "amtk: create window menus with Amtk"

This reverts commit 4de843d3.

Revert "amtk: create app menu with Amtk"

This reverts commit 53f587a2.