Remove intanglibe overlay

* org-colview.el (org-columns-display-here):
* org-agenda.el (org-agenda-dim-blocked-tasks): Remove
  intanglible overlay.

Suggested-by: Stefan Monnier <monnier@IRO.UMontreal.CA>
<http://permalink.gmane.org/gmane.emacs.orgmode/96914>
(Incl. original patch by Stefan).

lisp/org-agenda.el

@@ -3880,8 +3880,7 @@ dimming them."
 		  e (point-at-eol)
 		  ov (make-overlay b e))
 	    (if invis1
-		(progn (overlay-put ov 'invisible t)
-		       (overlay-put ov 'intangible t))
+		(overlay-put ov 'invisible t)
 	      (overlay-put ov 'face 'org-agenda-dimmed-todo-face))
 	    (overlay-put ov 'org-type 'org-blocked-todo))))))
   (when (org-called-interactively-p 'interactive)

lisp/org-colview.el

@@ -236,7 +236,6 @@ This is the compiled version of the format.")
      (setq ov (org-columns-new-overlay beg (point-at-eol)))
      (overlay-put ov 'invisible t)
      (overlay-put ov 'keymap org-columns-map)
-     (overlay-put ov 'intangible t)
      (overlay-put ov 'line-prefix "")
      (overlay-put ov 'wrap-prefix "")
      (push ov org-columns-overlays)