fix: prevent double emit from wrapping components

see vuejs/vue#8436

Author: KaelWD

src/components/VSelect/index.js

@@ -30,6 +30,7 @@ const wrapper = {
   },
 
   render (h, { props, data, slots, parent }) {
+    delete data.model
     const children = rebuildSlots(slots(), h)
 
     if (props.autocomplete) {

src/components/VTextField/index.js

@@ -16,6 +16,7 @@ const wrapper = {
   },
 
   render (h, { props, data, slots, parent }) {
+    delete data.model
     const children = rebuildSlots(slots(), h)
 
     if (props.textarea) {