Disable these still-flaky tests.
Disable these still-flaky tests.

BUG=
R=sebmarchand@chromium.org

Review URL: https://codereview.appspot.com/208250043

Eloston/syzygy,supriyantomaftuh/syzygy,Eloston/syzygy,wangming28/syzygy,pombreda/syzygy,google/syzygy,supriyantomaftuh/syzygy,wangming28/syzygy,google/syzygy,pombreda/syzygy,pombreda/syzygy,sebmarchand/syzygy,pombreda/syzygy,google/syzygy,pombreda/syzygy,ericmckean/syzygy,sebmarchand/syzygy,supriyantomaftuh/syzygy,sebmarchand/syzygy,google/syzygy,supriyantomaftuh/syzygy,wangming28/syzygy,sebmarchand/syzygy,wangming28/syzygy,ericmckean/syzygy,sebmarchand/syzygy,ericmckean/syzygy,ericmckean/syzygy,ericmckean/syzygy