no need for .d.ts or .map for test fixtures

Author: isaacs

test/fixtures/basic.d.ts

@@ -78,4 +78,3 @@ switch (process.argv[2]) {
         parentMain();
         break;
 }
-//# sourceMappingURL=basic.js.map

test/fixtures/basic.d.ts.map

@@ -57,4 +57,3 @@ switch (process.argv[2]) {
         child(String(process.argv[3]));
         break;
 }
-//# sourceMappingURL=change-exit.js.map