Revert "Add system util to execute app and retrieve its output" This reverts commit c63d95525cde8d28963148bb5894456c1d39018d. Reason for revert: Test fails on Win7 Original change's description: > Add system util to execute app and retrieve its output > > This will be useful to run external applications, such as benchmarks, > and process their output. > > Bug: angleproject:3125 > Change-Id: Ic13c69f2e034f4b47498fb2f299c62423c355c4a > Reviewed-on: https://chromium-review.googlesource.com/c/1452534 > Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> > Reviewed-by: Jamie Madill <jmadill@google.com> TBR=jmadill@google.com,syoussefi@chromium.org,jmadill@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: angleproject:3125, angleproject:3168 Change-Id: I389c0ee639c7c0176c87abe92fc88f99d1b20cc4 Reviewed-on: https://chromium-review.googlesource.com/c/1487104 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>