emacs-28 d8c9a9d: Revert "* lisp/wid-edit.el (widget-field): Add subtle border to face."

[Stefan Kangas]

branch: emacs-28
commit d8c9a9dc23e0c6f38c5138cb8fbb4109a5729a35
Author: Stefan Kangas <stefan@marxist.se>
Commit: Stefan Kangas <stefan@marxist.se>

    Revert "* lisp/wid-edit.el (widget-field): Add subtle border to face."
    
    This reverts commit 8b024a6ff10f7907445ea60c4db8355638616ed1.
    
    This lead to some alignment issues.  (Bug#51550)
    Don't merge to master, where we will continue investigating.
---
 lisp/wid-edit.el | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/lisp/wid-edit.el b/lisp/wid-edit.el
index 05606fb..a2e9bf4 100644
--- a/lisp/wid-edit.el
+++ b/lisp/wid-edit.el
@@ -131,21 +131,16 @@ This exists as a variable so it can be set locally in 
certain buffers.")
                        (((class grayscale color)
                          (background light))
                         :background "gray85"
-                         ;; We use negative thickness of the horizontal box 
border line to
-                         ;; avoid making lines taller when fields become 
visible.
-                         :box (:line-width (1 . -1) :color "gray80")
                         :extend t)
                        (((class grayscale color)
                          (background dark))
                         :background "dim gray"
-                         :box (:line-width (1 . -1) :color "gray46")
                         :extend t)
                        (t
                         :slant italic
                         :extend t))
   "Face used for editable fields."
-  :group 'widget-faces
-  :version "28.1")
+  :group 'widget-faces)
 
 (defface widget-single-line-field '((((type tty))
                                     :background "green3"