small tweaks to discscrubber...32bit seems to make a fine scrub job, but fails to actually compress.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3270 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/DiscIO/Src/DiscScrubber.cpp

@@ -375,6 +375,8 @@ void ParsePartitionData(SPartition& _rPartition)
 			, (*Files.at(currentFile)).m_Offset, (*Files.at(currentFile)).m_FileSize);
 	}
 
+	delete FileSystem;
+
 	// Swap back
 	delete m_Disc;
 	m_Disc = OldVolume;