Remove some treemacs settings that I don't actually need

README.org

@@ -365,27 +365,11 @@ Loading this file is handled automatically on my [[https://git.xenia.me.uk/xenia
   (use-package treemacs
     :ensure t
     :defer t
-    :config
-    ;; The default width and height of the icons is 22 pixels. If you are
-    ;; using a Hi-DPI display, uncomment this to double the icon size.
-    ;;(treemacs-resize-icons 44)
-
+    :custom
     (treemacs-follow-mode t)
     (treemacs-filewatch-mode t)
-    (treemacs-fringe-indicator-mode 'always)
-    (when treemacs-python-executable
-      (treemacs-git-commit-diff-mode t))
-
-    (pcase (cons (not (null (executable-find "git")))
-                 (not (null treemacs-python-executable)))
-      (`(t . t)
-       (treemacs-git-mode 'deferred))
-      (`(t . _)
-       (treemacs-git-mode 'simple)))
-
     (treemacs-hide-gitignored-files-mode nil)
     :bind
-    ("M-0"       . treemacs-select-window)
     ("C-x t 1"   . treemacs-delete-other-windows)
     ("C-x t t"   . treemacs)
     ("C-x t d"   . treemacs-select-directory)