Remove use_perfetto_client_library build flag in ['/base/trace_event', '/services/tracing']

This flag was introduced to provide a smooth transition from legacy
tracing macros to Perfetto tracing SDK. Now the transition is complete,
and the flag is unconditionally set to true on all platforms. So we can
remove the flag and the code that is disabled by it.

This CL was uploaded by git cl split.

R=altimin@chromium.org

Bug: 42050015, 336718643
Change-Id: I46b7bfcd7caa216e7c7245fe496e23ae6504c1f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5505657
Reviewed-by: Eric Seckler <eseckler@chromium.org>
Commit-Queue: Mikhail Khokhlov <khokhlov@google.com>
Cr-Commit-Position: refs/heads/main@{#1296020}
NOKEYCHECK=True
GitOrigin-RevId: 09563f6926a6a5651f222a520d9bb003bb5a7733
1 file changed
tree: cd2e2d6c40d884462df51e42662ead38bd708699
  1. trace_event_common.h