cosmetics: simplify latm_decode_init

libavcodec/aacdec.c

@@ -2533,15 +2533,10 @@ static int latm_decode_frame(AVCodecContext *avctx, void *out, int *out_size,
 av_cold static int latm_decode_init(AVCodecContext *avctx)
 {
     struct LATMContext *latmctx = avctx->priv_data;
-    int ret;
+    int ret = aac_decode_init(avctx);
 
-    ret = aac_decode_init(avctx);
-
-    if (avctx->extradata_size > 0) {
+    if (avctx->extradata_size > 0)
         latmctx->initialized = !ret;
-    } else {
-        latmctx->initialized = 0;
-    }
 
     return ret;
 }