ops, csv was unconditionally enabled, too

mysql51/mysql51.spec

@@ -133,7 +133,6 @@ Provides:     mysql = %{version}-%{release}
         --without-server \
 %else
         --with-server \
-        --with-plugin-csv \
         --with-plugin-heap \
         --with-plugin-myisam \
         --with-plugin-myisammrg \