CBQE-1802: transfer.conversionusetransfer.ConversionUseTransfer.convert_sqlite_to_couchstore, removing value_size parameter from test, it is long value causing connection issue in version 1.8

Change-Id: I4bfe24c913bcf0c480dd003cf8f200de268c9e2b
Reviewed-on: http://review.couchbase.org/31332
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>