Revert "Fix vulnerability in MemoryIntArray"

This reverts commit 86dfa094.


BROKE BUILD (as shown in some treehugger builds)

frameworks/base/core/java/android/util/MemoryIntArray.java:84: error: cannot find symbol
        mCloseGuard.open("close");
        ^
        
       
bug:33039926
bug:33042690

Change-Id: Ief875e543ec849fe55c747fb1ed5253f0cd9a122