Alerting: remove dead code (#43956) (#44103)

(cherry picked from commit 55ec05b560)

public/app/features/alerting/unified/utils/alertmanager.test.ts

@@ -1,6 +1,6 @@
 import { Matcher } from 'app/plugins/datasource/alertmanager/types';
 import { Labels } from 'app/types/unified-alerting-dto';
-import { parseMatcher, parseMatchers, stringifyMatcher, labelsMatchMatchers } from './alertmanager';
+import { parseMatcher, parseMatchers, labelsMatchMatchers } from './alertmanager';
 
 describe('Alertmanager utils', () => {
   describe('parseMatcher', () => {
@@ -55,19 +55,6 @@ describe('Alertmanager utils', () => {
     });
   });
 
-  describe('stringifyMatcher', () => {
-    it('should stringify matcher correctly', () => {
-      expect(
-        stringifyMatcher({
-          name: 'foo',
-          value: 'boo="bar"',
-          isRegex: true,
-          isEqual: false,
-        })
-      ).toEqual('foo!~"boo=\\"bar\\""');
-    });
-  });
-
   describe('parseMatchers', () => {
     it('should parse all operators', () => {
       expect(parseMatchers('foo=bar, bar=~ba.+, severity!=warning, email!~@grafana.com')).toEqual<Matcher[]>([

public/app/features/alerting/unified/utils/alertmanager.ts

@@ -99,14 +99,6 @@ function unescapeMatcherValue(value: string) {
   return trimmed.replace(/\\"/g, '"');
 }
 
-function escapeMatcherValue(value: string) {
-  return '"' + value.replace(/"/g, '\\"') + '"';
-}
-
-export function stringifyMatcher(matcher: Matcher): string {
-  return `${matcher.name}${matcherToOperator(matcher)}${escapeMatcherValue(matcher.value)}`;
-}
-
 export function parseMatcher(matcher: string): Matcher {
   const trimmed = matcher.trim();
   if (trimmed.startsWith('{') && trimmed.endsWith('}')) {