tree 1c53913d39a9ef74b61a4c88567b6778b0a63466
parent c8c218e70af723d7b36ad85bb3c64922b618010d
author Dave Borowitz <dborowitz@google.com> 1556725965 -0700
committer Dave Borowitz <dborowitz@google.com> 1557326001 -0700

ChangeNotesParser: Replace ApprovalKey with PatchSetApproval.Key

ApprovalKey was added in afe569ab with a different set of fields from
PatchSetApproval.Key, so we couldn't reuse PatchSetApproval.Key. The tag
field was removed in 0bc9ac8e[1], after which the two classes had the
same set of fields. Remove the redundant copy.

[1] https://gerrit-review.googlesource.com/c/gerrit/+/89132/8/gerrit-server/src/test/java/com/google/gerrit/server/notedb/ChangeNotesTest.java#142

Change-Id: I046889c43b42b64dfc3410adec9161b7dba1642c