Remove FieldDef.FillArgs

Supporting this in FieldDef required a lot of unnecessary boilerplate
that was (prior to earlier cleanups in this series) only used by the
change index, no other indexes. This also breaks a dependency edge
between the index package and the rest of gerrit-server, making it more
feasible to factor out a new build rule in the future.

Change-Id: I0785c7e2c93df7951818c3ebaa23e1e988686064
4 files changed
tree: 24613db26a7b8f1068133061c4f3e5b23ee9ca89
  1. gerrit-elasticsearch/
  2. gerrit-pgm/
  3. lib/