core: Remove ObjectCompareUtils class

The class was used at the time of moving from C# to
Java in order to maintain compatability, now it's no
longer needed

Change-Id: I11ee527a1825c2d88b2a812b784638de06108079
Signed-off-by: Tal Nisan <tnisan@redhat.com>
core: Remove UTF8EncodingCompat class

The class was used at the time of moving from C# to
Java in order to maintain compatability, now it's no
longer needed

Change-Id: I0eaa28f0b5df5a1992b19371d133c5f8f489359f
Signed-off-by: Tal Nisan <tnisan@redhat.com>