style: badge、popover、tag

src/packages/__VUE/badge/index.scss

@@ -1,7 +1,3 @@
-.demo {
-  background: $badge-default-background-color;
-}
-
 .nut-badge {
   position: relative;
   display: inline-block;

src/packages/__VUE/badge/index.taro.vue

@@ -90,7 +90,3 @@ export default create({
   }
 });
 </script>
-
-<style lang="scss">
-@import 'index.scss';
-</style>

src/packages/__VUE/popover/index.taro.vue

@@ -123,7 +123,3 @@ export default create({
   }
 });
 </script>
-
-<style lang="scss">
-@import 'index.scss';
-</style>

src/packages/__VUE/tag/index.taro.vue

@@ -94,7 +94,3 @@ export default create({
   }
 });
 </script>
-
-<style lang="scss">
-@import './index.scss';
-</style>