Adapt to exception changes in core

Change-Id: I29c0c4a71e272f1e0483b8e03d893cfe0a57fe2b
diff --git a/src/main/java/com/googlesource/gerrit/plugins/reviewers/ChangeEventListener.java b/src/main/java/com/googlesource/gerrit/plugins/reviewers/ChangeEventListener.java
index ab51c89..aa17344 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/reviewers/ChangeEventListener.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/reviewers/ChangeEventListener.java
@@ -19,7 +19,6 @@
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import com.google.gerrit.common.errors.NoSuchGroupException;
 import com.google.gerrit.extensions.common.ChangeInfo;
 import com.google.gerrit.extensions.events.RevisionCreatedListener;
 import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
@@ -237,7 +236,7 @@
         log.warn(String.format("Reviewer %s is neither an account nor a group", r));
       } catch (NoSuchProjectException e) {
         log.warn(String.format("Failed to list accounts for group %s and project %s", r, p));
-      } catch (IOException | NoSuchGroupException e) {
+      } catch (IOException e) {
         log.warn(String.format("Failed to list accounts for group %s", r), e);
       }
     }