Revert "org-babel-read: Obey `org-confirm-babel-evaluate'"

This reverts commit 10e857d428.

* lisp/ob-core.el:
(org-babel-merge-params):
(org-babel-process-params):
(org-babel-read):
* lisp/org-table.el: Add FIXME comments to places where arbitrary code
execution may happen.

The extra query is reverted until we develop a better code execution
safety system for Org.  The commit introduced too many user queries,
making the whole idea of asking users to execute code from Org files
not useful.

Link: https://orgmode.org/list/878rinadlq.fsf@localhost

lisp/ob-core.el

@@ -1690,6 +1690,7 @@ shown below.
 			 (append
 			  (split-string (if (stringp raw-result)
 					    raw-result
+                                          ;; FIXME: Arbitrary code evaluation.
 					  (eval raw-result t)))
 			  (cdr (assq :result-params params))))))
     (append
@@ -2860,6 +2861,7 @@ parameters when merging lists."
 				  (split-string
 				   (cond ((stringp value) value)
                                          ((functionp value) (funcall value))
+                                         ;; FIXME: Arbitrary code evaluation.
                                          (t (eval value t)))))))
 	  (`(:exports . ,value)
 	   (setq exports (funcall merge
@@ -3188,16 +3190,8 @@ situations in which is it not appropriate."
 	((and (not inhibit-lisp-eval)
 	      (or (memq (string-to-char cell) '(?\( ?' ?` ?\[))
 		  (string= cell "*this*")))
-         ;; Prevent arbitrary function calls.
-         (if (and (memq (string-to-char cell) '(?\( ?`))
-                  (not (org-babel-confirm-evaluate
-                      ;; See `org-babel-get-src-block-info'.
-                      (list "emacs-lisp" cell
-                            '((:eval . yes)) nil (format "%s" cell)
-                            nil nil))))
-             ;; Not allowed.
-             (user-error "Evaluation of elisp code %S aborted." cell)
-	   (eval (read cell) t)))
+         ;; FIXME: Arbitrary code evaluation.
+	 (eval (read cell) t))
 	((save-match-data
            (and (string-match "^[[:space:]]*\"\\(.*\\)\"[[:space:]]*$" cell)
                 (not (string-match "[^\\]\"" (match-string 1 cell)))))

lisp/org-table.el

@@ -2614,6 +2614,7 @@ location of point."
 
 	(if lispp
 	    (setq ev (condition-case nil
+                         ;; FIXME: Arbitrary code evaluation.
 			 (eval (eval (read form)))
 		       (error "#ERROR"))
 		  ev (if (numberp ev) (number-to-string ev) ev)