Bug 1488333 - Enable some mochitests for editor which were disabled on debug build of Android due to bug 1480702 r=m_kato

Because of the rewrite of test_request.html, now, we can enable the mochitests
for editor which were disabled on debug build of Android due to bug 1480702.

Differential Revision: https://phabricator.services.mozilla.com/D4904

--HG--
extra : moz-landing-system : lando

editor/libeditor/tests/mochitest.ini

@@ -260,7 +260,6 @@ skip-if = toolkit == 'android' # bug 1315898
 [test_bug1425997.html]
 
 [test_abs_positioner_appearance.html]
-skip-if = toolkit == 'android' && debug # bug 1480702, causes permanent failure of non-related test
 [test_abs_positioner_positioning_elements.html]
 skip-if = android_version == '18' # bug 1147989
 [test_CF_HTML_clipboard.html]
@@ -284,11 +283,8 @@ skip-if = android_version == '24'
 subsuite = clipboard
 skip-if = android_version == '24'
 [test_nsIHTMLEditor_getSelectedElement.html]
-skip-if = toolkit == 'android' && debug # bug 1480702, causes permanent failure of non-related test
 [test_nsIHTMLEditor_selectElement.html]
-skip-if = toolkit == 'android' && debug # bug 1480702, causes permanent failure of non-related test
 [test_nsIHTMLEditor_setCaretAfterElement.html]
-skip-if = toolkit == 'android' && debug # bug 1480702, causes permanent failure of non-related test
 [test_nsITableEditor_getCellAt.html]
 [test_nsITableEditor_getCellIndexes.html]
 [test_nsITableEditor_getFirstRow.html]