Refactor minibuffer bindings

+ conform their function names to naming conventions
+ place ivy-specific version in ivy autoloads

core/autoload/minibuffer.el

@@ -1,30 +1,25 @@
 ;;; ../core/autoload/minibuffer.el
 
 ;;;###autoload
-(defun doom-minibuffer-kill-word ()
+(defun doom/minibuffer-kill-word ()
   "Kill a word, backwards, but only if the cursor is after
 `minibuffer-prompt-end', to prevent the 'Text is read-only' warning from
 monopolizing the minibuffer."
   (interactive)
-  (call-interactively
-   (cond ((> (point) (minibuffer-prompt-end))
-          'backward-kill-word)
-         ((and (fboundp 'evil-ex-p) (evil-ex-p))
-          'evil-ex-delete-backward-char)
-         (t
-          'ivy-backward-delete-char))))
+  (when (> (point) (minibuffer-prompt-end))
+    (call-interactively #'backward-kill-word)))
 
 ;;;###autoload
-(defun doom-minibuffer-kill-line ()
+(defun doom/minibuffer-kill-line ()
   "Kill the entire line, but only if the cursor is after
 `minibuffer-prompt-end', to prevent the 'Text is read-only' warning from
 monopolizing the minibuffer."
   (interactive)
   (when (> (point) (minibuffer-prompt-end))
-    (call-interactively 'backward-kill-sentence)))
+    (call-interactively #'backward-kill-sentence)))
 
 ;;;###autoload
-(defun doom-minibuffer-undo ()
+(defun doom/minibuffer-undo ()
   "Undo an edit in the minibuffer without throwing errors."
   (interactive)
-  (ignore-errors (call-interactively 'undo)))
+  (ignore-errors (call-interactively #'undo)))