sdcard: remove mount check

Change-Id: I278d7f71e79a82a34f95dba197555d08960f2723
diff --git a/partition.cpp b/partition.cpp
index 69c3412..6d1825d 100755
--- a/partition.cpp
+++ b/partition.cpp
@@ -703,8 +703,6 @@
 			Primary_Block_Device.c_str(), Mount_Point.c_str());
 		}
 	} else {
-		if (Is_Mounted())
-			UnMount(true);
 		Set_FBE_Status();
 		int is_device_fbe;
 		DataManager::GetValue(TW_IS_FBE, is_device_fbe);