runtest/stress.part3: fix cmd for the rpc01 test case

Patch 9a7031ab2778600249947882d9f00acc9bcc1310 fixed some paths in
the rpc01 test script, so we shouldn't set TCbin before calling.

Signed-off-by: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
1 file changed