Remove unused c8 ignores

Closes GH-2251.

Reviewed-by: Christian Murphy <christian.murphy.42@gmail.com>

packages/esbuild/lib/index.js

@@ -119,9 +119,7 @@ export function esbuild(options) {
             namespace: 'file',
             pluginData: {contents}
           })
-        : // V8 on Erbium.
-          /* c8 ignore next 2 */
-          {contents, loader: 'js', resolveDir: p.cwd()}
+        : {contents, loader: 'js', resolveDir: p.cwd()}
     }
 
     /**
@@ -226,8 +224,6 @@ export function esbuild(options) {
       // Safety check: the file has a path, so there has to be a `dirname`.
       assert(file.dirname, 'expected `dirname` to be defined')
 
-      // V8 on Erbium.
-      /* c8 ignore next 9 */
       return {
         contents: value || '',
         errors,

packages/mdx/lib/evaluate.js

@@ -21,8 +21,6 @@ import {resolveEvaluateOptions} from './util/resolve-evaluate-options.js'
  */
 export async function evaluate(vfileCompatible, evaluateOptions) {
   const {compiletime, runtime} = resolveEvaluateOptions(evaluateOptions)
-  // V8 on Erbium.
-  /* c8 ignore next 2 */
   return run(await compile(vfileCompatible, compiletime), runtime)
 }
 

packages/mdx/lib/run.js

@@ -12,8 +12,6 @@ const AsyncFunction = Object.getPrototypeOf(run).constructor
  *   Anthing.
  */
 export async function run(file, options) {
-  // V8 on Erbium.
-  /* c8 ignore next 2 */
   return new AsyncFunction(String(file))(options)
 }
 

packages/rollup/lib/index.js

@@ -56,8 +56,6 @@ export function rollup(options) {
         // @ts-expect-error: a) `undefined` is fine, b) `sourceRoot: undefined` is fine too.
         const result = {code, map: compiled.map}
         return result
-        // V8 on Erbium.
-        /* c8 ignore next 2 */
       }
     }
   }