SDL_mixer: Revert accidental push of external modules in 8488fbd

From db37031ca094059588ba9c33c80b5d827d34fcc1 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sun, 26 Mar 2023 20:31:11 +0200
Subject: [PATCH] Revert accidental push of external modules in 8488fbd

---
 external/libxmp   | 2 +-
 external/opus     | 2 +-
 external/opusfile | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/external/libxmp b/external/libxmp
index 8fdef65f..0e39a8a7 160000
--- a/external/libxmp
+++ b/external/libxmp
@@ -1 +1 @@
-Subproject commit 8fdef65f8683564ef1a9835bf1c1a4cbb15e4069
+Subproject commit 0e39a8a7b5044ddd5fc3569f369dc2c798825a4d
diff --git a/external/opus b/external/opus
index ebc0684a..3ab0bb04 160000
--- a/external/opus
+++ b/external/opus
@@ -1 +1 @@
-Subproject commit ebc0684ab6bb598cda13651fe5f05553c2bbfbed
+Subproject commit 3ab0bb045e3dbd1ecb66962b0bf8eb548cf5287c
diff --git a/external/opusfile b/external/opusfile
index b3f3d2c8..9b13ae67 160000
--- a/external/opusfile
+++ b/external/opusfile
@@ -1 +1 @@
-Subproject commit b3f3d2c8977e506e0c673aee72b3901e4c3db8c7
+Subproject commit 9b13ae6783c33f010d13aee41c0bfa749721ea8f