clean code

modules/elasticsearch/src/main/java/org/elasticsearch/common/io/compression/LzfCompressor.java

@@ -64,7 +64,6 @@ public class LzfCompressor implements Compressor {
     }
 
     @Override public String decompressString(byte[] value) throws IOException {
-        CompressHolder ch = Cached.cached();
         byte[] result = decompress(value);
         return Unicode.fromBytes(result, 0, result.length);
     }