Is_Data_Wiped: simplify function signature

Change-Id: If724d38639cffe1f1ff5658503ed31ffd1ef72e8
diff --git a/twrp.cpp b/twrp.cpp
index 37053d2..1e3f860 100755
--- a/twrp.cpp
+++ b/twrp.cpp
@@ -404,7 +404,7 @@
 	// Reboot
 	TWFunc::Update_Intent_File(Send_Intent);
 	delete adb_bu_fifo;
-	if (!TWFunc::Is_Data_Wiped("/data"))
+	if (!TWFunc::Is_Data_Wiped())
 		TWFunc::Update_Log_File();
 	gui_msg(Msg("rebooting=Rebooting..."));
 	string Reboot_Arg;