psdec: IPD/OPD reset is no longer needed by the context initializer.

Originally committed as revision 23670 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/ps.c

@@ -1034,5 +1034,4 @@ av_cold void ff_ps_init(void) {
 
 av_cold void ff_ps_ctx_init(PSContext *ps)
 {
-    ipdopd_reset(ps->ipd_hist, ps->opd_hist);
 }