SDL: emscriptenaudio: Removed comment about Firefox not supporting userActivation.

From e0cee83a3aaf6010f733cfa1c239d01f88676f22 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Thu, 12 Dec 2024 10:46:40 -0500
Subject: [PATCH] emscriptenaudio: Removed comment about Firefox not supporting
 userActivation.

It does now, and has since Firefox 120 (around November 2023).
---
 src/audio/emscripten/SDL_emscriptenaudio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/audio/emscripten/SDL_emscriptenaudio.c b/src/audio/emscripten/SDL_emscriptenaudio.c
index 682728754706d..e25083d1970f1 100644
--- a/src/audio/emscripten/SDL_emscriptenaudio.c
+++ b/src/audio/emscripten/SDL_emscriptenaudio.c
@@ -168,7 +168,7 @@ static bool EMSCRIPTENAUDIO_OpenDevice(SDL_AudioDevice *device)
                 SDL3.audioContext = new webkitAudioContext();
             }
             if (SDL3.audioContext) {
-                if ((typeof navigator.userActivation) === 'undefined') {  // Firefox doesn't have this (as of August 2023), use autoResumeAudioContext instead.
+                if ((typeof navigator.userActivation) === 'undefined') {
                     autoResumeAudioContext(SDL3.audioContext);
                 }
             }
@@ -284,7 +284,7 @@ static bool EMSCRIPTENAUDIO_OpenDevice(SDL_AudioDevice *device)
                 SDL3.audio_playback.silenceBuffer = SDL3.audioContext.createBuffer($0, $1, SDL3.audioContext.sampleRate);
                 SDL3.audio_playback.silenceBuffer.getChannelData(0).fill(0.0);
                 var silence_callback = function() {
-                    if ((typeof navigator.userActivation) !== 'undefined') {  // Almost everything modern except Firefox (as of August 2023)
+                    if ((typeof navigator.userActivation) !== 'undefined') {
                         if (navigator.userActivation.hasBeenActive) {
                             SDL3.audioContext.resume();
                         }