sdl2-compat: audio: No need to check if this variable is negative, the loop test does that.

SDL Commits
1 
From d2cf6b3269a9c84f93bc3569abebbc03aba1f72d Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Fri, 31 Jan 2025 12:55:37 -0500
Subject: [PATCH] audio: No need to check if this variable is negative, the
 loop test does that.

---
 src/sdl2_compat.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/sdl2_compat.c b/src/sdl2_compat.c
index ae73970..0963a72 100644
--- a/src/sdl2_compat.c
+++ b/src/sdl2_compat.c
@@ -5687,9 +5687,6 @@ static void SDLCALL SDL2AudioDeviceCallbackBridge(void *userdata, SDL_AudioStrea
             stream2->callback2(stream2->callback2_userdata, (Uint8 *) stream2->callback2_buffer, stream2->bytes_per_callbacks);
             SDL_AudioStreamPut(stream2, stream2->callback2_buffer, stream2->bytes_per_callbacks);
             approx_amount -= stream2->bytes_per_callbacks;
-            if (approx_amount < 0) {
-                approx_amount = 0;
-            }
         }
     }
 }