fix(transition): should ship props declarations in production

packages/runtime-dom/src/components/Transition.ts

@@ -37,7 +37,7 @@ export const Transition: FunctionalComponent<TransitionProps> = (
   { slots }
 ) => h(BaseTransition, resolveTransitionProps(props), slots)
 
-export const TransitionPropsValidators = {
+export const TransitionPropsValidators = (Transition.props = {
   ...(BaseTransition as any).props,
   name: String,
   type: String,
@@ -55,11 +55,7 @@ export const TransitionPropsValidators = {
   leaveFromClass: String,
   leaveActiveClass: String,
   leaveToClass: String
-}
-
-if (__DEV__) {
-  Transition.props = TransitionPropsValidators
-}
+})
 
 export function resolveTransitionProps({
   name = 'v',

packages/runtime-dom/src/components/TransitionGroup.ts

@@ -36,6 +36,12 @@ export type TransitionGroupProps = Omit<TransitionProps, 'mode'> & {
 }
 
 const TransitionGroupImpl = {
+  props: {
+    ...TransitionPropsValidators,
+    tag: String,
+    moveClass: String
+  },
+
   setup(props: TransitionGroupProps, { slots }: SetupContext) {
     const instance = getCurrentInstance()!
     const state = useTransitionState()
@@ -130,21 +136,15 @@ const TransitionGroupImpl = {
   }
 }
 
+// remove mode props as TransitionGroup doesn't support it
+delete TransitionGroupImpl.props.mode
+
 export const TransitionGroup = (TransitionGroupImpl as unknown) as {
   new (): {
     $props: TransitionGroupProps
   }
 }
 
-if (__DEV__) {
-  const props = ((TransitionGroup as any).props = {
-    ...TransitionPropsValidators,
-    tag: String,
-    moveClass: String
-  })
-  delete props.mode
-}
-
 function callPendingCbs(c: VNode) {
   const el = c.el as any
   if (el._moveCb) {