Remove incorrect second default export from jsx.d.ts (#329)

Author: acelaya

.changeset/early-rules-nail.md

@@ -0,0 +1,5 @@
+---
+'preact-render-to-string': patch
+---
+
+Remove incorrect second default export from jsx.d.ts

jsx.d.ts

@@ -17,5 +17,3 @@ export default function renderToStringPretty(
 ): string;
 
 export function shallowRender(vnode: VNode, context?: any): string;
-
-export default render;