Adapth the code to core on stable-3.5 branch

In I81eeadb9fd the code was adapted to DiffOperations, but this
adaptation was already done against I22a465e49 that was included
starting from stable-3.6 branch.

Remove DiffOptions parameter to the invocation of:
DiffOperations#listModifiedFilesAgainstParent(). Also note, that
this change should be reverted when merging it to stable-3.6 branch.

Change-Id: I0f15022efd6322a44e38cf452bd060e0be60c510
diff --git a/src/main/java/com/googlesource/gerrit/plugins/reviewersbyblame/ReviewersByBlame.java b/src/main/java/com/googlesource/gerrit/plugins/reviewersbyblame/ReviewersByBlame.java
index 24121f4..b01d817 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/reviewersbyblame/ReviewersByBlame.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/reviewersbyblame/ReviewersByBlame.java
@@ -29,7 +29,6 @@
 import com.google.gerrit.server.account.Emails;
 import com.google.gerrit.server.patch.DiffNotAvailableException;
 import com.google.gerrit.server.patch.DiffOperations;
-import com.google.gerrit.server.patch.DiffOptions;
 import com.google.gerrit.server.patch.filediff.FileDiffOutput;
 import com.google.gerrit.server.patch.filediff.TaggedEdit;
 import com.google.inject.Inject;
@@ -110,7 +109,7 @@
     try {
       stringFileDiffOutputMap =
           diffOperations.listModifiedFilesAgainstParent(
-              change.getProject(), ps.commitId(), DEFAULT_BASE, DiffOptions.DEFAULTS);
+              change.getProject(), ps.commitId(), DEFAULT_BASE);
 
     } catch (DiffNotAvailableException ex) {
       log.error("Couldn't load patchlist for change {}", change.getKey(), ex);