Stop building frame_analyzer in gn_all.

Building WebRTC's frame_analyzer when is_component_build=true will
fail after [1] lands. It is possible to build it only for release
builds but this CL tries to remove it since probably this is not
needed.

[1] - https://chromium-review.googlesource.com/c/chromium/src/+/1874722

Bug: webrtc:9419
Change-Id: I6da6973b8a50ea08b60f0eea0da57014cce830e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1904072
Commit-Queue: Mirko Bonadei <mbonadei@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713590}

BUILD.gn

@@ -144,7 +144,6 @@ group("gn_all") {
       "//third_party/dawn:dawn_end2end_tests_temp_group",
       "//third_party/dawn:dawn_unittests_temp_group",
       "//third_party/pdfium/samples:pdfium_test",
-      "//third_party/webrtc/rtc_tools:frame_analyzer",
       "//tools/perf/clear_system_cache",
       "//tools/polymer:polymer_tools_python_unittests",
       "//ui/accessibility:accessibility_perftests",