mm/damon/core: remove declaration of __damon_commit_ctx()

Patch series "mm/damon: misc cleanups".

Cleanup the code, tests and samples for clarifications and readability.

The patches are individually sent by the authors.  I'm reposting those as
one series for convenience of handling.  For this reason, changelog is on
each patch's commentary section.


This patch (of 7):

__damon_commit_ctx() was added by commit b1471afe4d ("mm/damon/core: do
parameter testing commit on damon_start()") but is actually not needed. 
Remove it.

Link: https://lore.kernel.org/20260831142611.77572-1-sj@kernel.org
Link: https://lore.kernel.org/20260831142611.77572-2-sj@kernel.org
Signed-off-by: Zenghui Yu (Huawei) <zenghui.yu@linux.dev>
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Enze Li <lienze@kylinos.cn>
Cc: Hari Mishal <harimishal1@gmail.com>
Cc: Jaeyeon Lee <jaeyeon.lee.dev@gmail.com>
Cc: Li Youhong <liyouhong@kylinos.cn>
Cc: zhaozhengzhuo <zhaozhengzhuo@uniontech.com>

mm/damon/core.c

@@ -1935,8 +1935,6 @@ static int __damon_start(struct damon_ctx *ctx)
 	return err;
 }
 
-static int __damon_commit_ctx(struct damon_ctx *dst, struct damon_ctx *src);
-
 /**
  * damon_start() - Starts the monitorings for a given group of contexts.
  * @ctxs:	an array of the pointers for contexts to start monitoring