Partition: Remove unused has_data_media variable

Change-Id: Ic1a3aa2b57db5539ce6f6740a63bfe6d33890d70
diff --git a/partitionmanager.cpp b/partitionmanager.cpp
index 9afc677..bc4d8e1 100644
--- a/partitionmanager.cpp
+++ b/partitionmanager.cpp
@@ -1637,11 +1637,9 @@
 }
 
 int TWPartitionManager::usb_storage_enable(void) {
-	int has_data_media;
 	char lun_file[255];
 	bool has_multiple_lun = false;
 
-	DataManager::GetValue(TW_HAS_DATA_MEDIA, has_data_media);
 	string Lun_File_str = CUSTOM_LUN_FILE;
 	size_t found = Lun_File_str.find("%");
 	if (found != string::npos) {