qa/workunits/rbd: removed qemu-iotest case 077

The test case is not stable due to racing console output. This
results in spurious failures.

Fixes: http://tracker.ceph.com/issues/10773
Signed-off-by: Jason Dillaman <dillaman@redhat.com>

qa/workunits/rbd/qemu-iotests.sh

@@ -8,7 +8,7 @@
 # This will only work with particular qemu versions, like 1.0. Later
 # versions of qemu include qemu-iotests directly in the qemu
 # repository.
-testlist='001 002 003 004 005 008 009 010 011 021 025 032 033 055 077'
+testlist='001 002 003 004 005 008 009 010 011 021 025 032 033 055'
 
 git clone https://github.com/qemu/qemu.git
 # use v2.2.0-rc3 (last released version that handles all the tests