lib/string: remove unnecessary #undefs
A few architecture specific string.h functions used to be implemented in terms of preprocessor defines to the corresponding compiler builtins. Since this is no longer the case, remove unused #undefs. Only memcmp is still defined in terms of builtins for a few arches. Link: https://github.com/ClangBuiltLinux/linux/issues/428 Link: https://lkml.kernel.org/r/20201120041113.89382-1-ndesaulniers@google.com Fixes: 5f074f3e ("lib/string.c: implement a basic bcmp") Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Yury Norov <yury.norov@gmail.com> Cc: Alexandru Ardelean <alexandru.ardelean@analog.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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