Remove rest of TSC_COMPILE_ON_ERROR

This is a breaking change in the webpack 5 update

Author: Morten N.O. Henriksen

docusaurus/docs/advanced-configuration.md

@@ -26,7 +26,6 @@ You can adjust various development and production settings by setting environmen
 | INLINE_RUNTIME_CHUNK      | 🚫 Ignored  |  ✅ Used   | By default, Create React App will embed the runtime script into `index.html` during the production build. When set to `false`, the script will not be embedded and will be imported as usual. This is normally required when dealing with CSP.                                                                                                                                                                                                                                                                                                                                                                                                                           |
 | IMAGE_INLINE_SIZE_LIMIT   |   ✅ Used   |  ✅ Used   | By default, images smaller than 10,000 bytes are encoded as a data URI in base64 and inlined in the CSS or JS build artifact. Set this to control the size limit in bytes. Setting it to `0` will disable the inlining of images.                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | FAST_REFRESH              |   ✅ Used   | 🚫 Ignored | When set to `false`, disables experimental support for Fast Refresh to allow you to tweak your components in real time without reloading the page.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
-| TSC_COMPILE_ON_ERROR      |   ✅ Used   |  ✅ Used   | When set to `true`, you can run and properly build TypeScript projects even if there are TypeScript type check errors. These errors are printed as warnings in the terminal and/or browser console.                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
 | ESLINT_NO_DEV_ERRORS      |   ✅ Used   | 🚫 Ignored | When set to `true`, ESLint errors are converted to warnings during development. As a result, ESLint output will no longer appear in the error overlay.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
 | DISABLE_ESLINT_PLUGIN     |   ✅ Used   |  ✅ Used   | When set to `true`, [eslint-webpack-plugin](https://github.com/webpack-contrib/eslint-webpack-plugin) will be completely disabled.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
 | DISABLE_NEW_JSX_TRANSFORM |   ✅ Used   |  ✅ Used   | When set to `true`, disables the [new JSX transform](https://reactjs.org/blog/2020/09/22/introducing-the-new-jsx-transform.html) introduced in React 17 and backported to React 16.14.0, 15.7.0, and 0.14.10. New projects will use a version of React that supports this by default but you may need to disable it in existing projects if you can't upgrade React.                                                                                                                                                                                                                                                                                                     |

packages/react-scripts/scripts/build.js

@@ -126,19 +126,9 @@ checkBrowsers(paths.appPath, isInteractive)
       );
     },
     err => {
-      const tscCompileOnError = process.env.TSC_COMPILE_ON_ERROR === 'true';
-      if (tscCompileOnError) {
-        console.log(
-          chalk.yellow(
-            'Compiled with the following type errors (you may want to check these before deploying your app):\n'
-          )
-        );
-        printBuildError(err);
-      } else {
-        console.log(chalk.red('Failed to compile.\n'));
-        printBuildError(err);
-        process.exit(1);
-      }
+      console.log(chalk.red('Failed to compile.\n'));
+      printBuildError(err);
+      process.exit(1);
     }
   )
   .catch(err => {