Remove cache mode on partition load addPartitionPostingsDictionary, a=chris

diff --git a/src/library/IndexDocumentBundle.php b/src/library/IndexDocumentBundle.php
index 346146b12..c52e72bc9 100644
--- a/src/library/IndexDocumentBundle.php
+++ b/src/library/IndexDocumentBundle.php
@@ -448,7 +448,7 @@ class IndexDocumentBundle implements CrawlConstants
         crawlLog("Start Adding Partition Posting Info to Dictionary");
         $start_time = microtime(true);
         $postings_string = $postings_tools->load($postings_filename,
-            PackedTableTools::AS_STRING_MODE, true);
+            PackedTableTools::AS_STRING_MODE);
         $temp_postings_filename = $base_folder . "/" .
             self::TEMP_POSTINGS_FILENAME;
         rename($postings_filename, $temp_postings_filename);