Disable network_test.ts
Disable network_test.ts

It is flaky: https://logs.chromium.org/logs/devtools-frontend/buildbucket/cr-buildbucket.appspot.com/8877880430589037088/+/steps/E2E_tests/0/stdout

TBR=patrick.brosset@microsoft.com

Bug: 1093287
Change-Id: I5ca19c874d41c542162706007966f90a0f350440
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2238234
Reviewed-by: Tim van der Lippe <dba8716ee7f8d16236046f74d2167cb94410f6ed@chromium.org>
Commit-Queue: Tim van der Lippe <dba8716ee7f8d16236046f74d2167cb94410f6ed@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend