RecompressTracked: Remove useless member variable

It's only checked once and has no external users

Change-Id: I6951b799759f1d8b0063a3059bec5c1c64a35815

diff --git a/maintenance/storage/recompressTracked.php b/maintenance/storage/recompressTracked.php
index 2f414df..292a25d 100644 (file)
--- a/maintenance/storage/recompressTracked.php
+++ b/maintenance/storage/recompressTracked.php
@@ -59,7 +59,7 @@ class RecompressTracked {
        public $reportingInterval = 10;
        public $numProcs = 1;
        public $numBatches = 0;
-       public $useDiff, $pageBlobClass, $orphanBlobClass;
+       public $pageBlobClass, $orphanBlobClass;
        public $slavePipes, $slaveProcs, $prevSlaveId;
        public $copyOnly = false;
        public $isChild = false;
@@ -112,8 +112,8 @@ class RecompressTracked {
                } elseif ( $this->slaveId !== false ) {
                        $GLOBALS['wgDebugLogPrefix'] = "RCT {$this->slaveId}: ";
                }
-               $this->useDiff = function_exists( 'xdiff_string_bdiff' );
-               $this->pageBlobClass = $this->useDiff ? 'DiffHistoryBlob' : 'ConcatenatedGzipHistoryBlob';
+               $this->pageBlobClass = function_exists( 'xdiff_string_bdiff' ) ?
+                       'DiffHistoryBlob' : 'ConcatenatedGzipHistoryBlob';
                $this->orphanBlobClass = 'ConcatenatedGzipHistoryBlob';
        }