Revert "[perf] Add browse:social:tumblr_infinite_scroll system health story"

This reverts commit 4aa59465.

Reason for revert: High telemetry_perf_unittests failure rate on android-marshmallow-arm64-rel CQ bot

See crbug.com/898646.

Original change's description:
> [perf] Add browse:social:tumblr_infinite_scroll system health story
> 
> Bug: 878390
> Change-Id: Ibdaeafbc6d32970641a5a8562125eb15b0bfedf7
> Reviewed-on: https://chromium-review.googlesource.com/c/1277659
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Juan Antonio Navarro Pérez <perezju@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#602346}

TBR=ulan@chromium.org,perezju@chromium.org

Change-Id: I5a656976e63444aa583d1c35eea62c34da27a551
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 878390
Reviewed-on: https://chromium-review.googlesource.com/c/1298415Reviewed-by: Ben Pastene <bpastene@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602441}

tools/perf/benchmarks/system_health_smoke_test.py

@@ -38,7 +38,6 @@ _DISABLED_TESTS = frozenset({
   # and will later be removed.
   'system_health.memory_mobile/browse:tech:discourse_infinite_scroll',
   'system_health.memory_mobile/browse:social:facebook_infinite_scroll',
-  'system_health.memory_mobile/browse:social:tumblr_infinite_scroll',
   'system_health.memory_mobile/browse:news:cnn',
   'system_health.memory_mobile/load:news:cnn',
   'system_health.memory_mobile/load:tools:stackoverflow',
@@ -47,7 +46,6 @@ _DISABLED_TESTS = frozenset({
   'system_health.memory_desktop/load_accessibility:media:wikipedia',
   'system_health.memory_desktop/browse:tech:discourse_infinite_scroll',
   'system_health.memory_desktop/browse:social:facebook_infinite_scroll',
-  'system_health.memory_desktop/browse:social:tumblr_infinite_scroll',
   'system_health.memory_desktop/browse:news:flipboard',
   'system_health.memory_desktop/browse:search:google',
   'system_health.memory_desktop/browse:news:hackernews',

tools/perf/page_sets/data/system_health_desktop.json

@@ -69,9 +69,6 @@
         "browse:social:tumblr_infinite_scroll": {
             "DEFAULT": "system_health_desktop_056.wprgo"
         },
-        "browse:social:tumblr_infinite_scroll:2018": {
-            "DEFAULT": "system_health_desktop_049d29ed85.wprgo"
-        },
         "browse:social:twitter": {
             "DEFAULT": "system_health_desktop_053.wprgo"
         },

tools/perf/page_sets/data/system_health_desktop_049d29ed85.wprgo.sha1

-049d29ed851bce5aae1ff138f747d54f25a21e74
\ No newline at end of file

tools/perf/page_sets/data/system_health_mobile.json

@@ -96,9 +96,6 @@
         "browse:social:tumblr_infinite_scroll": {
             "DEFAULT": "system_health_mobile_062.wprgo"
         },
-        "browse:social:tumblr_infinite_scroll:2018": {
-            "DEFAULT": "system_health_mobile_f6eab4101a.wprgo"
-        },
         "browse:social:twitter": {
             "DEFAULT": "system_health_mobile_023.wprgo"
         },

tools/perf/page_sets/data/system_health_mobile_f6eab4101a.wprgo.sha1

-f6eab4101a26b9b93fab0463dfcf1f9306d58271
\ No newline at end of file

tools/perf/page_sets/system_health/browsing_stories.py

@@ -1130,18 +1130,6 @@ class TumblrStory(_InfiniteScrollStory):
   TAGS = [story_tags.INFINITE_SCROLL, story_tags.JAVASCRIPT_HEAVY,
           story_tags.YEAR_2016]
 
-class TumblrStory2018(_InfiniteScrollStory):
-  NAME = 'browse:social:tumblr_infinite_scroll:2018'
-  URL = 'https://techcrunch.tumblr.com/'
-  TAGS = [story_tags.INFINITE_SCROLL, story_tags.JAVASCRIPT_HEAVY,
-          story_tags.YEAR_2018]
-
-  def _Login(self, action_runner):
-    tumblr_login.LoginDesktopAccount(action_runner, 'tumblr')
-    action_runner.Wait(5)
-    # Without this page reload the mobile version does not correctly
-    # go to the https://techcrunch.tumblr.com
-    action_runner.ReloadPage()
 
 class TwitterScrollDesktopStory(_InfiniteScrollStory):
   NAME = 'browse:social:twitter_infinite_scroll'