kbuild: doc: remove documentation about copying Module.symvers around

This is a left-over of commit 39808e451fdf ("kbuild: do not read
$(KBUILD_EXTMOD)/Module.symvers").

Kbuild no longer supports this way.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/Documentation/kbuild/modules.rst b/Documentation/kbuild/modules.rst
index e0b45a257f2188e2cea5d7988480f5fb0819d7f8..a45cccff467d8e931bb2e209893d072cbd2266ea 100644 (file)
--- a/Documentation/kbuild/modules.rst
+++ b/Documentation/kbuild/modules.rst
@@ -528,18 +528,6 @@ build.
                will then do the expected and compile both modules with
                full knowledge of symbols from either module.
 
-       Use an extra Module.symvers file
-               When an external module is built, a Module.symvers file
-               is generated containing all exported symbols which are
-               not defined in the kernel. To get access to symbols
-               from bar.ko, copy the Module.symvers file from the
-               compilation of bar.ko to the directory where foo.ko is
-               built. During the module build, kbuild will read the
-               Module.symvers file in the directory of the external
-               module, and when the build is finished, a new
-               Module.symvers file is created containing the sum of
-               all symbols defined and not part of the kernel.
-
        Use "make" variable KBUILD_EXTRA_SYMBOLS
                If it is impractical to add a top-level kbuild file,
                you can assign a space separated list