[perf waterfall] Disable rendering.desktop on win 7 perf.

See bug for context.

Bug: 997257
Change-Id: I884668d55e28c2b0df7253467abe125cea71c431
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1773513Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Auto-Submit: Caleb Rouleau <crouleau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#691889}

tools/perf/core/bot_platforms.py

@@ -110,7 +110,8 @@ _MAC_LOW_END_BENCHMARK_NAMES = _OFFICIAL_EXCEPT_JETSTREAM2
 _WIN_10_BENCHMARK_NAMES = _OFFICIAL_EXCEPT_DISPLAY_LOCKING
 _WIN_10_LOW_END_HP_CANDIDATE_BENCHMARK_NAMES = frozenset([
     'v8.browsing_desktop'])
-_WIN_7_BENCHMARK_NAMES = _OFFICIAL_EXCEPT_DISPLAY_LOCKING_JETSTREAM2
+_WIN_7_BENCHMARK_NAMES = (_OFFICIAL_EXCEPT_DISPLAY_LOCKING_JETSTREAM2 -
+                          frozenset(['rendering.desktop']))
 _WIN_7_GPU_BENCHMARK_NAMES = _OFFICIAL_EXCEPT_DISPLAY_LOCKING_JETSTREAM2
 _ANDROID_GO_BENCHMARK_NAMES = frozenset([
     'system_health.memory_mobile',

tools/perf/core/shard_maps/win_7_perf_map.json

@@ -85,9 +85,6 @@
             "rasterize_and_record_micro.top_25": {
                 "abridged": false
             },
-            "rendering.desktop": {
-                "abridged": false
-            },
             "speedometer": {
                 "abridged": false
             },