tests: Remove issue3572 marker

See #3572

pytest.ini

@@ -26,7 +26,6 @@ markers =
     js_prompt: Tests needing to display a javascript prompt
     this: Used to mark tests during development
     no_invalid_lines: Don't fail on unparseable lines in end2end tests
-    issue3572: Tests which are broken with QtWebEngine and Qt 5.10, https://github.com/qutebrowser/qutebrowser/issues/3572
     qtbug60673: Tests which are broken if the conversion from orange selection to real selection  is flaky
     qtbug80085: Tests which are broken on Qt 5.14 due to a missing renderProcessTerminated signal
     fake_os: Fake utils.is_* to a fake operating system

tests/conftest.py

@@ -101,12 +101,6 @@ def _apply_platform_markers(config, item):
          sys.getfilesystemencoding() == 'ascii',
          "Skipped because of ASCII locale"),
 
-        ('issue3572',
-         pytest.mark.xfail,
-         (qtutils.version_check('5.10', compiled=False, exact=True) or
-          qtutils.version_check('5.10.1', compiled=False, exact=True)) and
-         config.webengine and 'TRAVIS' in os.environ,
-         "Broken with QtWebEngine with Qt 5.10 on Travis"),
         ('qtbug60673',
          pytest.mark.xfail,
          qtutils.version_check('5.8') and

tests/end2end/features/scroll.feature

@@ -237,7 +237,6 @@ Feature: Scrolling
         Then the page should be scrolled vertically
 
     # https://github.com/qutebrowser/qutebrowser/issues/1821
-    @issue3572
     Scenario: :scroll-to-perc without doctype
         When I open data/scroll/no_doctype.html
         And I run :scroll-to-perc 100
@@ -291,7 +290,6 @@ Feature: Scrolling
         And I run :scroll-page --bottom-navigate next 0 1
         Then data/hello2.txt should be loaded
 
-    @issue3572
     Scenario: :scroll-page with --bottom-navigate and zoom
         When I run :zoom 200
         And I wait 0.5s
@@ -323,7 +321,6 @@ Feature: Scrolling
 
     ## issues
 
-    @issue3572
     Scenario: Relative scroll position with a position:absolute page
         When I open data/scroll/position_absolute.html
         And I run :scroll-to-perc 100