Revert "org.el (org-speed-command-activate): Don't activate speed commands within blocks"

This reverts commit 7c8e854d9c3c2f10e3ce8305316ec7fbc58a7458.

lisp/org.el

@@ -18832,11 +18832,7 @@ If not, return to the original position and throw an error."
   "Hook for activating single-letter speed commands.
 `org-speed-commands-default' specifies a minimal command set.
 Use `org-speed-commands-user' for further customization."
-  (when (or (and (bolp) (looking-at org-outline-regexp)
-		 ;; FIXME org-speed-commands-forbidden-blocks?
-		 (not (org-in-block-p
-		       '("src" "example" "verse" "html"
-			 "latex" "ascii" "beamer" "odt"))))
+  (when (or (and (bolp) (looking-at org-outline-regexp))
 	    (and (functionp org-use-speed-commands)
 		 (funcall org-use-speed-commands)))
     (cdr (assoc keys (append org-speed-commands-user