Revert "fix(banned words): fix partial matching of words containing diacritic… (#12444)"

This reverts commit f2bcdd21de.

website/server/libs/stringUtils.js

@@ -4,21 +4,12 @@ export function removePunctuationFromString (str) {
 
 // NOTE: the wordsToMatch aren't escaped in order to support regular expressions,
 // so this method should not be used if wordsToMatch contains unsanitized user input
-
 export function getMatchesByWordArray (str, wordsToMatch) {
-  // remove accented characters from the string, which would trip up the regEx
-  // later on, by using the built-in Unicode normalisation methods
-  // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize
-  // https://www.unicode.org/reports/tr15/#Canon_Compat_Equivalence
-  // https://unicode-table.com/en/#combining-diacritical-marks
-
-  const normalizedStr = str.normalize('NFD').replace(/[\u0300-\u036f]/g, '');
-
   const matchedWords = [];
   const wordRegexs = wordsToMatch.map(word => new RegExp(`\\b([^a-z]+)?${word}([^a-z]+)?\\b`, 'i'));
   for (let i = 0; i < wordRegexs.length; i += 1) {
     const regEx = wordRegexs[i];
-    const match = normalizedStr.match(regEx);
+    const match = str.match(regEx);
     if (match !== null && match[0] !== null) {
       const trimmedMatch = removePunctuationFromString(match[0]).trim();
       matchedWords.push(trimmedMatch);