Don't #if a function declaration and properly indent it.

Originally committed as revision 18722 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/dsputil.c

@@ -2754,9 +2754,7 @@ void ff_avg_cavs_qpel16_mc00_c(uint8_t *dst, uint8_t *src, int stride) {
 }
 #endif /* CONFIG_CAVS_DECODER */
 
-#if CONFIG_MLP_DECODER || CONFIG_TRUEHD_DECODER
-    void ff_mlp_init(DSPContext* c, AVCodecContext *avctx);
-#endif
+void ff_mlp_init(DSPContext* c, AVCodecContext *avctx);
 
 #if CONFIG_VC1_DECODER || CONFIG_WMV3_DECODER
 /* VC-1 specific */