rustc: Remove another global map from trans

This commit removes the `crate_trans_items` field from the `CrateContext` of
trans. This field, a big map, was calculated during partioning and was a set of
all translation items. This isn't quite incremental-friendly because the map may
change a lot but not have much effect on downstream consumers.

Instead a new query was added for the one location this map was needed, along
with a new comment explaining what the location is doing!

0 files changed, 0 insertions, 0 deletions