avro

AVRO-766. C: Skip valgrind check for now

AVRO-766 describes a memory leak bug with recursive schemas.  Until we
commit a fix to this bug, we're going to turn off the valgrind tests in
our test suite.  We'll turn this back on once we have a fix for the
memory leak.


git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1074702 13f79535-47bb-0310-9956-ffa450edef68