Remove unused local variable

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I124980ec71574c7ddbcdddb33f044c86f8fd17b5

src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java b/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java
index fd2bb25..7c761fa 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java
@@ -225,7 +225,6 @@
       } catch (PermissionBackendException e) {
         throw new IOException(e);
       }
-      Map<String, Ref> result = Maps.newHashMapWithExpectedSize(refs.size());
       // VisibleRefFilter adds the prefix to the keys, re-strip it.
       return refs.stream().collect(toMap(r -> r.getName().substring(prefix.length()), r -> r));
     }