perf: reduce jiti loader alias work

src/plugins/loader.ts

@@ -454,18 +454,12 @@ function createPluginJitiLoader(options: Pick<PluginLoadOptions, "pluginSdkResol
   const jitiLoaders: PluginJitiLoaderCache = new Map();
   return (modulePath: string) => {
     const tryNative = shouldPreferNativeJiti(modulePath);
-    const aliasMap = buildPluginLoaderAliasMap(
-      modulePath,
-      process.argv[1],
-      import.meta.url,
-      options.pluginSdkResolution,
-    );
     return getCachedPluginJitiLoader({
       cache: jitiLoaders,
       modulePath,
       importerUrl: import.meta.url,
       jitiFilename: import.meta.url,
-      aliasMap,
+      pluginSdkResolution: options.pluginSdkResolution,
       // Source .ts runtime shims import sibling ".js" specifiers that only exist
       // after build. Disable native loading for source entries so Jiti rewrites
       // those imports against the source graph, while keeping native dist/*.js