Reverting "org-footnote: forward declare functions"

Revert "org-footnote: forward declare functions"

This reverts commit 814188ac7e25c500433c13d8696af47d62f0de23.

Accidentally applied to the wrong branch.

lisp/org-footnote.el

@@ -41,9 +41,6 @@
 (declare-function org-back-over-empty-lines "org" ())
 (declare-function org-back-to-heading "org" (&optional invisible-ok))
 (declare-function org-combine-plists "org" (&rest plists))
-(declare-function org-element-context "org-element" (&optional element))
-(declare-function org-element-property "org-element" (property element))
-(declare-function org-element-type "org-element" (element))
 (declare-function org-end-of-subtree "org"  (&optional invisible-ok to-heading))
 (declare-function org-fill-paragraph "org" (&optional justify))
 (declare-function org-icompleting-read "org" (&rest args))