remove cjs and esm tsconfigs

Author: lobsterkatie

packages/browser/tsconfig.cjs.json

@@ -1,5 +1,5 @@
 # `tsconfig` Templates
 
-Every package should get its own copy of these five files. Package-specific options should go in `tsconfig.json` and
-test-specific options in `tsconfig.test.json`. The `cjs`, `esm`, and `types` files shouldn't need to be modified, and
-only exist because tsconfigs don't support multiple inheritence.
+Every package should get its own copy of these three files. Package-specific options should go in `tsconfig.json` and
+test-specific options in `tsconfig.test.json`. The `types` file shouldn't need to be modified, and only exists because
+tsconfigs don't support multiple inheritence.