remove unused import.

This change resynchronizes AOSP with internal master.
The import line is unused.

Change-Id: I98bef1f88dee758f5bdcec35fba204f793d4028e
diff --git a/services/java/com/android/server/pm/SELinuxMMAC.java b/services/java/com/android/server/pm/SELinuxMMAC.java
index af7153f..d70c725 100644
--- a/services/java/com/android/server/pm/SELinuxMMAC.java
+++ b/services/java/com/android/server/pm/SELinuxMMAC.java
@@ -28,7 +28,6 @@
 import libcore.io.IoUtils;
 
 import java.io.File;
-import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.FileReader;