Update theme.inc

Updates based on @jordandukart code review.

theme/theme.inc

@@ -53,18 +53,16 @@ function islandora_preprocess_islandora_default_edit(array &$variables) {
       'class' => 'datastream-size',
       'data' => islandora_datastream_get_human_readable_size($ds),
     );
-    if (user_access(ISLANDORA_VIEW_DATASTREAM_HISTORY)) {
+    if (islandora_datastream_access(ISLANDORA_VIEW_DATASTREAM_HISTORY, $ds)) {
-      if (islandora_datastream_access(ISLANDORA_VIEW_DATASTREAM_HISTORY, $ds)) {
+      $row[] = array(
-        $row[] = array(
+        'class' => 'datastream-versions',
-          'class' => 'datastream-versions',
+        'data' => theme('islandora_datastream_version_link', array(
-          'data' => theme('islandora_datastream_version_link', array(
+          'datastream' => $ds,
-            'datastream' => $ds,
+        )),
-          )),
+      );
-        );
+    }
-      }
+    else if (user_access(ISLANDORA_VIEW_DATASTREAM_HISTORY)) {
-      else {
+      $row[] = array();
-        $row[] = array();
-      }
     }
     if (islandora_datastream_access(ISLANDORA_VIEW_DATASTREAM_HISTORY, $ds)) {
       // Add new datastream content as the lastest version.