fix(unplugin-dts): remove forceDtsEmit to support declarationMap

Remove the forceDtsEmit flag passed to program.emit() in transform(),
which prevents TypeScript from emitting .d.ts.map files when
declarationMap is enabled in tsconfig.

fix #449

Author: qmhc

packages/unplugin-dts/src/core/runtime.ts

@@ -432,9 +432,6 @@ export class Runtime {
           },
           undefined,
           true,
-          undefined,
-          // @ts-expect-error
-          true,
         )
 
         if (emitSkipped && diagnostics.length > 0) {