npgsql - Npgsql2: Removed a redundant check which was already being

Log Message:
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Removed a redundant check which was already being done with previous patch.

Modified Files:
--------------
Npgsql2/src/Npgsql:
NpgsqlConnection.cs (r1.23 -> r1.24)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlConnection.cs.diff?r1=1.23&r2=1.24)