Rename getTsFromChangeAndDraftComments to getTsFromChange

This rename should have been done in the context of:
I88eadaa4b3693cccd3f4eaca0d331df248cee685

Change-Id: I13a184dd9cc5748cc05b0e330272fb4643a95c9c
diff --git a/src/main/java/com/ericsson/gerrit/plugins/highavailability/index/ChangeCheckerImpl.java b/src/main/java/com/ericsson/gerrit/plugins/highavailability/index/ChangeCheckerImpl.java
index 08dd424..76475b0 100644
--- a/src/main/java/com/ericsson/gerrit/plugins/highavailability/index/ChangeCheckerImpl.java
+++ b/src/main/java/com/ericsson/gerrit/plugins/highavailability/index/ChangeCheckerImpl.java
@@ -156,7 +156,7 @@
   }
 
   private Optional<Long> computeLastChangeTs() {
-    return getChangeNotes().map(this::getTsFromChangeAndDraftComments);
+    return getChangeNotes().map(this::getTsFromChange);
   }
 
   private String getMetaSha(Repository repo) throws IOException {
@@ -169,7 +169,7 @@
     return ref.getTarget().getObjectId().getName();
   }
 
-  private long getTsFromChangeAndDraftComments(ChangeNotes notes) {
+  private long getTsFromChange(ChangeNotes notes) {
     Change change = notes.getChange();
     return change.getLastUpdatedOn().toEpochMilli() / 1000;
   }