diff --git a/core/autoload/buffers.el b/core/autoload/buffers.el
index 466811746..0548757be 100644
--- a/core/autoload/buffers.el
+++ b/core/autoload/buffers.el
@@ -158,41 +158,6 @@ buffers. If there's nothing left, switch to `doom-fallback-buffer'. See
   (with-current-buffer buffer
     (setq doom-real-buffer-p flag)))
 
-;;;###autoload
-(defun doom-kill-buffer (&optional buffer dont-save)
-  "Kill BUFFER (defaults to current buffer), but make sure we land on a real
-buffer. Bury the buffer if the buffer is present in another window.
-
-Will prompt to save unsaved buffers when attempting to kill them, unless
-DONT-SAVE is non-nil.
-
-See `doom-real-buffer-p' for what 'real' means."
-  (unless buffer
-    (setq buffer (current-buffer)))
-  (when (and (bufferp buffer)
-             (buffer-live-p buffer))
-    (let ((buffer-win (get-buffer-window buffer)))
-      ;; deal with modified buffers
-      (when (and (buffer-file-name buffer)
-                 (buffer-modified-p buffer))
-        (with-current-buffer buffer
-          (if (and (not dont-save)
-                   (yes-or-no-p "Buffer is unsaved, save it?"))
-              (save-buffer)
-            (set-buffer-modified-p nil))))
-      ;; kill the buffer (or close dedicated window)
-      (cond ((not buffer-win)
-             (kill-buffer buffer))
-            ((window-dedicated-p buffer-win)
-             (unless (window--delete buffer-win t t)
-               (split-window buffer-win)
-               (window--delete buffer-win t t)))
-            (t ; cycle to a real buffer
-             (with-selected-window buffer-win
-               (doom--cycle-real-buffers -1)
-               (kill-buffer buffer)))))
-    (not (eq (current-buffer) buffer))))
-
 ;;;###autoload
 (defun doom-kill-buffer-and-windows (buffer)
   "Kill the buffer and delete all the windows it's displayed in."
@@ -207,20 +172,13 @@ See `doom-real-buffer-p' for what 'real' means."
 regex PATTERN. Returns the number of killed buffers."
   (let ((buffers (doom-matching-buffers pattern buffer-list)))
     (dolist (buf buffers (length buffers))
-      (doom-kill-buffer buf t))))
+      (kill-buffer buf t))))
 
 
 ;;
 ;; Interactive commands
 ;;
 
-;;;###autoload
-(defun doom/kill-this-buffer (&optional interactive-p)
-  "Use `doom-kill-buffer' on the current buffer."
-  (interactive (list 'interactive))
-  (when (and (not (doom-kill-buffer)) interactive-p)
-    (message "Nowhere left to go!")))
-
 ;;;###autoload
 (defun doom/kill-this-buffer-in-all-windows (buffer &optional dont-save)
   "Kill BUFFER globally and ensure all windows previously showing this buffer
@@ -231,7 +189,10 @@ If DONT-SAVE, don't prompt to save modified buffers (discarding their changes)."
    (list (current-buffer) current-prefix-arg))
   (cl-assert (bufferp buffer) t)
   (let ((windows (get-buffer-window-list buffer nil t)))
-    (doom-kill-buffer buffer dont-save)
+    (when (and (buffer-modified-p buffer) dont-save)
+      (with-current-buffer buffer
+        (set-buffer-modified-p nil)))
+    (kill-buffer buffer)
     (cl-loop for win in windows
              if (doom-real-buffer-p (window-buffer win))
              do (with-selected-window win (doom/previous-buffer)))))
diff --git a/modules/app/irc/config.el b/modules/app/irc/config.el
index 35d02432c..0b98053cc 100644
--- a/modules/app/irc/config.el
+++ b/modules/app/irc/config.el
@@ -84,7 +84,7 @@ playback.")
   (add-hook 'circe-channel-mode-hook #'turn-on-visual-line-mode)
 
   ;; Let `+irc/quit' and `circe' handle buffer cleanup
-  (map! :map circe-mode-map [remap doom/kill-this-buffer] #'bury-buffer)
+  (map! :map circe-mode-map [remap kill-buffer] #'bury-buffer)
 
   (defun +irc*circe-truncate-nicks ()
     "Truncate long nicknames in chat output non-destructively."
diff --git a/modules/app/regex/autoload/regex.el b/modules/app/regex/autoload/regex.el
index 7e43db77e..a54a210a5 100644
--- a/modules/app/regex/autoload/regex.el
+++ b/modules/app/regex/autoload/regex.el
@@ -33,8 +33,6 @@
     (define-key map "\C-c\C-c" #'+regex-update-buffers)
     (define-key map "\C-c\C-r" #'=regex/replace)
     (define-key map "\C-c\C-k" #'+regex/quit)
-    (define-key map [remap doom-kill-buffer]      #'+regex/quit)
-    (define-key map [remap doom/kill-this-buffer] #'+regex/quit)
     (define-key map [remap kill-this-buffer]      #'+regex/quit)
     (define-key map [remap kill-buffer]           #'+regex/quit)
     map)
diff --git a/modules/app/rss/config.el b/modules/app/rss/config.el
index 6cdce9a3c..bfd25007f 100644
--- a/modules/app/rss/config.el
+++ b/modules/app/rss/config.el
@@ -35,7 +35,6 @@
   (add-hook 'elfeed-show-mode-hook #'+rss|elfeed-wrap)
 
   (map! (:map (elfeed-search-mode-map elfeed-show-mode-map)
-          [remap doom/kill-this-buffer] "q"
           [remap kill-this-buffer]      "q"
           [remap kill-buffer]           "q")
 
diff --git a/modules/completion/helm/config.el b/modules/completion/helm/config.el
index 33890f1b1..116c49c63 100644
--- a/modules/completion/helm/config.el
+++ b/modules/completion/helm/config.el
@@ -97,9 +97,7 @@
 (def-package! helm-ag
   :defer t
   :config
-  (map! :map helm-ag-edit-map
-        [remap doom/kill-this-buffer] #'helm-ag--edit-abort
-        [remap quit-window]           #'helm-ag--edit-abort))
+  (map! :map helm-ag-edit-map [remap quit-window] #'helm-ag--edit-abort))
 
 
 (def-package! helm-css-scss ; https://github.com/ShingoFukuyama/helm-css-scss
diff --git a/modules/private/default/+bindings.el b/modules/private/default/+bindings.el
index d17193caa..dc8beb3e4 100644
--- a/modules/private/default/+bindings.el
+++ b/modules/private/default/+bindings.el
@@ -289,7 +289,7 @@
 
 
       ;; --- Personal vim-esque bindings ------------------
-      :n  "zx" #'doom/kill-this-buffer
+      :n  "zx" #'kill-this-buffer
       :n  "ZX" #'bury-buffer
       :n  "]b" #'doom/next-buffer
       :n  "[b" #'doom/previous-buffer