kbuild: remove redundant extra warning flags

There is no point in turning individual options off and then on again, or
vice versa, as the last one always wins.  Now that -Wextra always gets
passed first, remove all the redundant lines about warnings that are
implied by either -Wall or -Wextra, and keep only the last one that
disables it in some configurations.

This should not have any effect but keep the Makefile more readable and
the command line shorter.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Nicolas Schier <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions