Revert "fix about dialog collapsed on qt 5.11/12"

This reverts commit edb3b176a8.

causes a lot of flickering on startup - will just move to
static sizing instead, as there is a scrollbar anyway

aqt/about.py

@@ -24,9 +24,7 @@ def show(mw):
     mw.setupDialogGC(dialog)
     abt = aqt.forms.about.Ui_About()
     abt.setupUi(dialog)
-    abouttext = "<style>body { margin: 0 }\n.outer { padding: 2em; }</style>"
+    abouttext = "<center><img src='/_anki/imgs/anki-logo-thin.png'></center>"
-    abouttext += "<div class=outer>"
-    abouttext += "<center><img src='/_anki/imgs/anki-logo-thin.png'></center>"
     abouttext += '<p>' + _("Anki is a friendly, intelligent spaced learning \
 system. It's free and open source.")
     abouttext += "<p>"+_("Anki is licensed under the AGPL3 license. Please see "
@@ -127,14 +125,9 @@ system. It's free and open source.")
 please get in touch.")
     abouttext += '<p>' + _("A big thanks to all the people who have provided \
 suggestions, bug reports and donations.")
-    abouttext += "</div>"
+    abt.label.stdHtml(abouttext, js=" ")
+    def resizeAndShow(arg):
+        dialog.adjustSize()
         dialog.show()
-    dialog.setMinimumWidth(800)
+    abt.label.evalWithCallback("1", resizeAndShow)
-    abt.label.stdHtml(abouttext)
-    if qtminor >= 11:
-        abt.label.adjustHeightToFit()
-        # after the height is adjusted, adjust the dialog size
-        abt.label.evalWithCallback("1", lambda _: dialog.adjustSize())
-    else:
-        dialog.setMinimumHeight(600)
     return dialog