chore: remove ua-parser-js — use core Utils.parseUserAgent instead

ua-parser-js was replaced in src/ by a lightweight browser detection in
Dash-Industry-Forum#4972 but the dependency itself was not removed. The only remaining
active usage was in test/functional/src/Utils.js, which now uses
CoreUtils.parseUserAgent() from src/core/Utils.js.

Also removes commented-out ua-parser-js imports in the Capabilities
unit test.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: PascalThuet

package-lock.json

@@ -85,7 +85,6 @@
     "typescript": "^5.9.3",
     "webpack": "5.94.0",
     "webpack-cli": "^6.0.1",
-    "ua-parser-js": "^2.0.6",
     "webpack-dev-server": "^5.2.2",
     "webpack-merge": "^6.0.1",
     "yargs": "^18.0.0"

package.json

@@ -1,4 +1,4 @@
-import {UAParser} from 'ua-parser-js'
+import CoreUtils from '../../../src/core/Utils.js'
 
 class Utils {
 
@@ -58,7 +58,7 @@ class Utils {
             return false
         }
 
-        const userAgent = UAParser(navigator.userAgent.toLowerCase())
+        const userAgent = CoreUtils.parseUserAgent(navigator.userAgent)
         return excludedPlatforms.some((platform) => {
             return platform && platform.browser && platform.browser.toLowerCase() === userAgent.browser.name.toLowerCase()
         })

test/functional/src/Utils.js

@@ -4,17 +4,10 @@ import DescriptorType from '../../../../src/dash/vo/DescriptorType.js';
 
 import {expect} from 'chai';
 import Constants from '../../../../src/streaming/constants/Constants.js';
-//import {UAParser} from 'ua-parser-js';
 
 let settings;
 let capabilities;
 
-//const uaString = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase() : '';
-//const ua = UAParser(uaString);
-
-// The Media Capabilities API seems to return wrong values on Linux with Firefox. Deactivate some tests for now
-//const isLinuxFirefox = ua.browser.name.toLowerCase() === 'firefox' && ua.os.name.toLowerCase().includes('linux');
-
 const enhancementCodecs = ['lvc1'];
 
 let EssentialPropertyThumbNail = new DescriptorType;