build(utils): remove declarations when using output.dir option

re #177

packages/utils/rollup.config.ts

@@ -12,20 +12,30 @@ const banner = `/**
  * @see [Github]{@link ${pkg.homepage}}
 */`
 
-export default {
-    input: "src/index.ts",
-    output: [
-        { file: pkg.exports["."].require, format: "cjs", banner },
-        { file: pkg.exports["."].default, format: "es", banner },
-        {
-            dir: "./dist/lib.commonjs",
-            format: "cjs",
-            banner,
-            preserveModules: true,
-            entryFileNames: "[name].cjs"
-        },
-        { dir: "./dist/lib.esm", format: "es", banner, preserveModules: true }
-    ],
-    external: [],
-    plugins: [typescript({ tsconfig: "./build.tsconfig.json" }), cleanup({ comments: "jsdoc" })]
-}
+export default [
+    {
+        input: "src/index.ts",
+        output: [
+            { file: pkg.exports["."].require, format: "cjs", banner },
+            { file: pkg.exports["."].default, format: "es", banner }
+        ],
+        plugins: [typescript({ tsconfig: "./build.tsconfig.json" }), cleanup({ comments: "jsdoc" })]
+    },
+    {
+        input: "src/index.ts",
+        output: [
+            {
+                dir: "./dist/lib.commonjs",
+                format: "cjs",
+                banner,
+                preserveModules: true,
+                entryFileNames: "[name].cjs"
+            },
+            { dir: "./dist/lib.esm", format: "es", banner, preserveModules: true }
+        ],
+        plugins: [
+            typescript({ tsconfig: "./build.tsconfig.json", declaration: false, declarationDir: undefined }),
+            cleanup({ comments: "jsdoc" })
+        ]
+    }
+]