Kill some more tests

tests/end2end/features/qutescheme.feature

@@ -98,8 +98,8 @@ Feature: Special qute:// pages
 
     # qute://settings
 
-    # Sometimes, an unrelated value gets set
-    @flaky
+    # Sometimes, an unrelated value gets set, which also breaks other tests
+    @skip
     Scenario: Focusing input fields in qute://settings and entering valid value
         When I set search.ignore_case to never
         And I open qute://settings

tests/end2end/features/scroll.feature

@@ -163,6 +163,7 @@ Feature: Scrolling
         When I run :scroll-to-perc 100
         Then the page should be scrolled vertically
 
+    @flaky
     Scenario: Scrolling to bottom and to top with :scroll-to-perc
         When I run :scroll-to-perc 100
         And I wait until the scroll position changed

tests/end2end/features/search.feature

@@ -262,7 +262,8 @@ Feature: Searching on a page
             - data/search.html
             - data/hello.txt (active)
 
-    @qtwebkit_skip: Not supported in qtwebkit @flaky
+    # Too flaky
+    @qtwebkit_skip: Not supported in qtwebkit @skip
     Scenario: Follow a searched link in an iframe
         When I open data/iframe_search.html
         And I run :tab-only