Merge branch 'jk/oidmap-cleanup'

Code cleanup.

* jk/oidmap-cleanup:
  raw_object_store: drop extra pointer to replace_map
  oidmap: add size function
  oidmap: rename oidmap_free() to oidmap_clear()

diff --cc object-store.c
Simple merge

diff --cc object-store.h
Simple merge

diff --cc sequencer.c
Simple merge