Remove updated simple mobile sites

It's been a week since simple_mobile_sites was refreshed, remove the old
pages and corresponding expectation

Bug: 852530
Change-Id: I8f18f80794ae711f36215ee50b50d8bb40e7dbf9
Reviewed-on: https://chromium-review.googlesource.com/1154997Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Amy Qiu <amyqiu@google.com>
Cr-Commit-Position: refs/heads/master@{#579193}

tools/perf/expectations.config

@@ -154,7 +154,6 @@ crbug.com/755556 [ Android ] rendering.mobile/balls_css_key_frame_animations_com
 crbug.com/829499 [ Android_One ] rendering.mobile/css_animations_many_keyframes [ Skip ]
 crbug.com/829499 [ Android_One ] rendering.mobile/web_animations_many_keyframes [ Skip ]
 crbug.com/840964 [ Nexus_5X ] rendering.mobile/web_animations_many_keyframes [ Skip ]
-crbug.com/750833 [ Android_Webview ] rendering.mobile/flickr_scroll [ Skip ]
 crbug.com/653993 [ Android_Webview ] rendering.mobile/maps_perf_test [ Skip ]
 [ All ] rendering.mobile/core_scroll_header_panel [ Skip ] # Polymer test, needs to be modernized.
 [ All ] rendering.mobile/paper_button [ Skip ] # Polymer test, needs to be modernized.

tools/perf/page_sets/data/rendering_mobile.json

@@ -491,35 +491,23 @@
         },
         "smash_cat": {
             "DEFAULT": "tough_canvas_cases_001.wprgo"
-	},
-	"microsoft_performance": {
-            "DEFAULT": "tough_animation_cases_000.wprgo"
         },
-        "ebay_scroll": {
-            "DEFAULT": "simple_mobile_sites_002.wprgo"
+        "microsoft_performance": {
+            "DEFAULT": "tough_animation_cases_000.wprgo"
         },
         "ebay_scroll_2018": {
             "DEFAULT": "simple_mobile_sites_003.wprgo"
         },
-        "flickr_scroll": {
-            "DEFAULT": "simple_mobile_sites_002.wprgo"
-        },
         "flickr_scroll_2018": {
             "DEFAULT": "simple_mobile_sites_003.wprgo"
         },
-        "nyc_gov_scroll": {
-            "DEFAULT": "simple_mobile_sites_002.wprgo"
-        },
         "nyc_gov_scroll_2018": {
             "DEFAULT": "simple_mobile_sites_003.wprgo"
         },
-        "nytimes_scroll": {
-            "DEFAULT": "simple_mobile_sites_002.wprgo"
-        },
         "nytimes_scroll_2018": {
             "DEFAULT": "simple_mobile_sites_003.wprgo"
         },
-	"aquarium_20k": {
+        "aquarium_20k": {
             "DEFAULT": "tough_webgl_cases_006.wprgo"
         },
         "animometer_webgl": {

tools/perf/page_sets/rendering/simple_mobile_sites.py

@@ -36,44 +36,24 @@ class SimplePage(rendering_story.RenderingStory):
       action_runner.ScrollPage(direction='down', speed_in_pixels_per_second=300)
 
 
-class SimpleEbayPage(SimplePage):
-  BASE_NAME = 'ebay_scroll'
-  URL = 'http://www.ebay.co.uk/'
-
-
 class SimpleEbay2018Page(SimplePage):
   BASE_NAME = 'ebay_scroll'
   YEAR = '2018'
   URL = 'http://www.ebay.co.uk/'
 
 
-class SimpleFlickrPage(SimplePage):
-  BASE_NAME = 'flickr_scroll'
-  URL = 'https://www.flickr.com/'
-
-
 class SimpleFlickr2018Page(SimplePage):
   BASE_NAME = 'flickr_scroll'
   YEAR = '2018'
   URL = 'https://www.flickr.com/photos/flickr/albums/72157639858715274'
 
 
-class SimpleNYCGovPage(SimplePage):
-  BASE_NAME = 'nyc_gov_scroll'
-  URL = 'http://www.nyc.gov'
-
-
 class SimpleNYCGov2018Page(SimplePage):
   BASE_NAME = 'nyc_gov_scroll'
   YEAR = '2018'
   URL = 'http://www.nyc.gov'
 
 
-class SimpleNYTimesPage(SimplePage):
-  BASE_NAME = 'nytimes_scroll'
-  URL = 'http://m.nytimes.com/'
-
-
 class SimpleNYTimes2018Page(SimplePage):
   BASE_NAME = 'nytimes_scroll'
   YEAR = '2018'