* x-dnd.el: Require dnd.

* x-dnd.el: Require dnd.
(x-dnd-handle-uri-list, x-dnd-handle-file-name): Call
dnd-handle-one-url.
(x-dnd-types-alist, x-dnd-insert-utf8-text)
(x-dnd-insert-utf16-text, x-dnd-insert-ctext): Change x-dnd-insert-text
to dnd-insert-text.
(x-dnd-protocol-alist, x-dnd-open-file-other-window,
x-dnd-handle-one-url, x-dnd-get-local-file-uri,
x-dnd-get-local-file-name,  x-dnd-open-local-file,
x-dnd-open-file, x-dnd-insert-text): Moved to dnd.el (without x-).