Deletes inlineStyleLegacy().

There is no more need for this since the new `inlineStyle()` function has shipped.

packages/rules_prerender/BUILD.bazel

@@ -190,7 +190,6 @@ ts_library(
     name = "styles_test_lib",
     srcs = ["styles_test.ts"],
     testonly = True,
-    data = ["//packages/rules_prerender/testdata:styles.css"],
     deps = [
         ":inline_style_map",
         ":styles",

packages/rules_prerender/index.ts

@@ -2,4 +2,4 @@
 
 export { PrerenderResource } from 'rules_prerender/common/models/prerender_resource';
 export { includeScript } from 'rules_prerender/packages/rules_prerender/scripts';
-export { includeStyle, inlineStyle, inlineStyleLegacy } from 'rules_prerender/packages/rules_prerender/styles';
+export { includeStyle, inlineStyle } from 'rules_prerender/packages/rules_prerender/styles';

packages/rules_prerender/styles.ts

@@ -69,16 +69,3 @@ export class InlineStyleNotFoundError extends Error {
         });
     }
 }
-
-/**
- * Reads the given CSS file at the provided runfiles path and returns it in a
- * `<style />` tag to be inlined in the document.
- */
-export async function inlineStyleLegacy(path: string): Promise<string> {
-    const styles = await fs.readFile(runfiles.resolve(path), 'utf-8');
-    return `
-<style>
-${styles}
-</style>
-    `.trim();
-}

packages/rules_prerender/styles_test.ts

@@ -2,7 +2,7 @@ import 'jasmine';
 
 import * as inlineStyleMap from 'rules_prerender/packages/rules_prerender/inline_style_map';
 import { createAnnotation, StyleScope } from 'rules_prerender/common/models/prerender_annotation';
-import { includeStyle, inlineStyle, inlineStyleLegacy, InlineStyleNotFoundError } from 'rules_prerender/packages/rules_prerender/styles';
+import { includeStyle, inlineStyle, InlineStyleNotFoundError } from 'rules_prerender/packages/rules_prerender/styles';
 
 describe('styles', () => {
     describe('includeStyle()', () => {
@@ -58,22 +58,4 @@ describe('styles', () => {
             })} -->`);
         });
     });
-
-    describe('inlineStyleLegacy()', () => {
-        it('resolves to a `<style />` element with the runfiles content of the given file path', async () => {
-            const styles = await inlineStyleLegacy(
-                'rules_prerender/packages/rules_prerender/testdata/styles.css');
-            expect(styles).toBe(`
-<style>
-.foo { color: red; }
-
-</style>
-            `.trim());
-        });
-
-        it('rejects when the given file path is not found in runfiles', async () => {
-            await expectAsync(inlineStyleLegacy('rules_prerender/does/not/exist.css'))
-                .toBeRejected();
-        });
-    });
 });