journal: remove journal_file_object_keep/release functions

The only user is sd_journal_enumerate_unique() and, as explained in
the previous commit (fed67c38e3 "journal: map objects to context set by
caller, not by actual object type"), the use of them there is now
superfluous. Let's remove them.

This reverts major parts of commits:
  ae97089d49 journal: fix access to munmapped memory in
             sd_journal_enumerate_unique
  06cc69d44c sd-journal: fix sd_journal_enumerate_unique skipping values

Tested with an "--enable-debug" build and "journalctl --list-boots".
It gives the expected number of results. Additionally, if I then revert
the previous commit ("journal: map objects to context set by caller, not
to actual object type"), it crashes with SIGSEGV, as expected.

1 files changed, 0 insertions, 12 deletions

diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
index 211e121d5c..c5a92bc5ff 100644
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@@ -211,15 +211,3 @@ static unsigned type_to_context(int type) {
         /* One context for each type, plus one catch-all for the rest */
         return type > 0 && type < _OBJECT_TYPE_MAX ? type : 0;
 }
-
-static inline int journal_file_object_keep(JournalFile *f, Object *o, uint64_t offset, void **release_cookie) {
-        unsigned context = type_to_context(o->object.type);
-        uint64_t s = le64toh(o->object.size);
-
-        return mmap_cache_get(f->mmap, f->fd, f->prot, context, true,
-                              offset, s, &f->last_stat, NULL, release_cookie);
-}
-
-static inline int journal_file_object_release(JournalFile *f, void *release_cookie) {
-        return mmap_cache_release(f->mmap, f->fd, release_cookie);
-}