remove upper constraint per flutter/flutter#68143

Illia Romanenko · Illia Romanenko · commit c19ccde55867 · 2021-03-10T11:05:56.000+02:00
diff --git a/flutter_vlc_player/pubspec.yaml b/flutter_vlc_player/pubspec.yaml
@@ -5,7 +5,7 @@ homepage: https://github.com/solid-software/flutter_vlc_player/
 
 environment:
   sdk: ">=2.10.0 <3.0.0"
-  flutter: ">=1.10.0 <2.0.0"
+  flutter: ">=1.10.0"
 
 flutter:
   plugin:
