Org babel: Add function and keybinding to remove result blocks

* ob-core.el (org-babel-remove-result-one-or-many): New function.

* ob-keys.el (org-babel-key-bindings): Add a keybinding for the
new function `org-babel-remove-result-one-or-many'.

TINYCHANGE

lisp/ob-core.el

@@ -2252,6 +2252,15 @@ code ---- the results are extracted in the syntax of the source
 	   (if keep-keyword (1+ (match-end 0)) (1- (match-beginning 0)))
 	   (progn (forward-line 1) (org-babel-result-end))))))))
 
+(defun org-babel-remove-result-one-or-many (x)
+  "Remove the result of the current source block.
+If called with a prefix argument, remove all result blocks
+in the buffer."
+  (interactive "P")
+  (if x
+      (org-babel-map-src-blocks nil (org-babel-remove-result))
+    (org-babel-remove-result)))
+
 (defun org-babel-result-end ()
   "Return the point at the end of the current set of results."
   (save-excursion

lisp/ob-keys.el

@@ -89,6 +89,7 @@ functions which are assigned key bindings, and see
     ("h" . org-babel-describe-bindings)
     ("\C-x" . org-babel-do-key-sequence-in-edit-buffer)
     ("x" . org-babel-do-key-sequence-in-edit-buffer)
+    ("k" . org-babel-remove-result-one-or-many)
     ("\C-\M-h" . org-babel-mark-block))
   "Alist of key bindings and interactive Babel functions.
 This list associates interactive Babel functions