Remove //test:field_trials from RTCEventLogs viewer.

This dependency is not needed.

Bug: b/237526033
Change-Id: Ief983a7cd08e919b0b120809f1aa1ec5bde8a8d4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/267168
Auto-Submit: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Björn Terelius <terelius@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37379}
diff --git a/rtc_tools/BUILD.gn b/rtc_tools/BUILD.gn
index 1a56be8..c7ce8d1 100644
--- a/rtc_tools/BUILD.gn
+++ b/rtc_tools/BUILD.gn
@@ -484,9 +484,7 @@
           "../rtc_base:logging",
           "../rtc_base:protobuf_utils",
           "../system_wrappers:field_trial",
-          "../test:field_trial",
           "../test:fileutils",
-          "../test:test_support",
           "//third_party/abseil-cpp/absl/algorithm:container",
           "//third_party/abseil-cpp/absl/flags:config",
           "//third_party/abseil-cpp/absl/flags:flag",
diff --git a/rtc_tools/rtc_event_log_visualizer/main.cc b/rtc_tools/rtc_event_log_visualizer/main.cc
index 6182b70..d83e200 100644
--- a/rtc_tools/rtc_event_log_visualizer/main.cc
+++ b/rtc_tools/rtc_event_log_visualizer/main.cc
@@ -35,7 +35,6 @@
 #include "rtc_tools/rtc_event_log_visualizer/analyzer.h"
 #include "rtc_tools/rtc_event_log_visualizer/plot_base.h"
 #include "system_wrappers/include/field_trial.h"
-#include "test/field_trial.h"
 #include "test/testsupport/file_utils.h"
 
 ABSL_FLAG(std::string,