.editorconfig: respect .editorconfig settings from parent directories

Setting 'root' to 'true' prevents the editor from searching for other
.editorconfig files in parent directories.  However, a common workflow
involves generating a patch with 'git format-patch' and opening it in an
editor within the kernel source directory.  In such cases, we want any
specific settings for patch files defined in an .editorconfig located
above the kernel source directory to remain effective.  Therefore, remove
the 'root' setting from the kernel .editorconfig.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Kevin Hao <[email protected]>
Cc: Íñigo Huguet <[email protected]>
Cc: Danny Lin <[email protected]>
Cc: Mickaël Salaün <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: haokexin

.editorconfig

@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
-root = true
-
 [{*.{awk,c,dts,dtsi,dtso,h,mk,s,S},Kconfig,Makefile,Makefile.*}]
 charset = utf-8
 end_of_line = lf