Remove final qualifiers

Final qualifier in private methods are redundant as per JLS: "A private
method and all methods declared immediately within a final class
(§8.1.1.2) behave as if they are final, since it is impossible to
override them."

Also remove final qualifier from method parameters according to Gerrit
code style guide [1].

[1] https://gerrit-review.googlesource.com/Documentation/dev-contributing.html#style

Change-Id: Ibe60561118f78b9bc413e5a3fd0a933799473195

src/main/java/com/googlesource/gerrit/plugins/deleteproject/database/DatabaseDeleteHandler.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/database/DatabaseDeleteHandler.java b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/database/DatabaseDeleteHandler.java
index 5e0a2f8..9585cff 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/database/DatabaseDeleteHandler.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/database/DatabaseDeleteHandler.java
@@ -150,7 +150,7 @@
     }
   }
 
-  private final void deleteChanges(ReviewDb db, Project.NameKey project, List<Change.Id> changeIds)
+  private void deleteChanges(ReviewDb db, Project.NameKey project, List<Change.Id> changeIds)
       throws OrmException {
 
     for (Change.Id id : changeIds) {
@@ -180,8 +180,7 @@
     }
   }
 
-  private final void deleteFromPatchSets(ReviewDb db, final ResultSet<PatchSet> patchSets)
-      throws OrmException {
+  private void deleteFromPatchSets(ReviewDb db, ResultSet<PatchSet> patchSets) throws OrmException {
     for (PatchSet patchSet : patchSets) {
       accountPatchReviewStore.get().clearReviewed(patchSet.getId());
       db.patchSets().delete(Collections.singleton(patchSet));