refactor(docs-infra): remove image size exclusion list (angular#41292)

In angular#41253 the size of contributor images was limited, but
some images were already too large. So an exclusion list
was added. These images have now been reduced, so
the exclusion list is no longer needed.

The files were reduced by a combination of running them through the
https://tinyjpg.com/ online service and manually setting their size to
168px wide or tall using the MacOS Image Preview app.

PR Close angular#41292

Author: petebacondarwin

aio/scripts/contributors/validate-data.js

@@ -2,7 +2,7 @@
 
 // Imports
 const {existsSync, readFileSync, statSync} = require('fs');
-const {basename, join, resolve} = require('path');
+const {join, resolve} = require('path');
 
 // Constants
 const MAX_IMAGE_SIZE = 30 * 1024;  // 30kb
@@ -11,18 +11,6 @@ const IMAGES_DIR = join(CONTENT_DIR, 'images/bios');
 const CONTRIBUTORS_PATH = join(CONTENT_DIR, 'marketing/contributors.json');
 const EXISTING_GROUPS = new Set(['Angular', 'GDE', 'Collaborators']);
 
-// The list of profile images that exceed specified `MAX_IMAGE_SIZE` limit.
-// These images were added before the size check was introduced. Exclude these images
-// from size check for now, but still check other images (more importantly run the check
-// for new PRs where profile images are added).
-const EXCLUDE_FROM_SIZE_CHECK = new Set([
-  'alainchautard.png', 'ahsanayaz.jpg', 'alan-agius4.jpg', 'andrew-kushnir.jpg',
-  'brian-love.jpg', 'cexbrayat.jpg', 'christianliebel.jpg', 'patovargas.png', 'gerardsans.jpg',
-  'jessicajaniuk.jpg', 'JiaLiPassion.jpg', 'juristr.jpg', 'katerina.jpg', 'kimmaida.jpg',
-  'kyliau.jpg', 'lacolaco.jpg', 'leonardo.jpg', 'nirkaufman.jpg', 'sajee.jpg', 'sonukapoor.jpg',
-  'tracylee.jpg', 'twerske.jpg', 'wesgrimes.jpg'
-]);
-
 // Run
 _main();
 
@@ -43,9 +31,7 @@ function _main() {
   }
 
   // Check that there are no images that exceed the size limit.
-  const tooLargeImages = expectedImages
-       .filter(path => !EXCLUDE_FROM_SIZE_CHECK.has(basename(path)))
-       .filter(path => statSync(path).size > MAX_IMAGE_SIZE);
+  const tooLargeImages = expectedImages.filter(path => statSync(path).size > MAX_IMAGE_SIZE);
   if (tooLargeImages.length > 0) {
     throw new Error(
         `The following pictures exceed maximum size limit of ${MAX_IMAGE_SIZE / 1024}kb:` +