feat: remove $event

Author: zhiyuanzmj

Diff for: playground/virtual-dom/App.vue

@@ -75,7 +75,7 @@ defineRender((
       <input
         {...{ value: count.value }}
         {...count.value ? { for: 'id' } : {}}
-        onInput={count.value = $event.target.value}
+        onInput={($event: any) => count.value = $event.target.value}
       />
       {/* Function Components */}
       {Component}

Diff for: src/core/transform.ts

@@ -69,9 +69,6 @@ export function transformVueJsxVapor(
         if (node.value?.type === 'JSXExpressionContainer') {
           if (/^on[A-Z]/.test(name)) {
             name = name.replace(/^(?:on)([A-Z])/, (_, $1) => `@${$1.toLowerCase()}`)
-
-            if (!isFunctionExpression(node.value.expression))
-              s.appendRight(node.value.expression.start!, '($event) => ')
           }
           else if (!name.startsWith('v-')) {
             name = `:${name}`