Revert "input: dvb: also create program data for programs on the same frequency"

This reverts commit 5e35aa8c.
Merging all epg data on current input item isn't a great idea as,
outside event handlers, we can't really guess which one is related
to our current program. It also allocates extr metadata.
We'll need to store that epg data in a different place.

src/input/es_out.c

@@ -1195,6 +1195,8 @@ static void EsOutProgramMeta( es_out_t *out, int i_group, const vlc_meta_t *p_me
         return;
     }
     /* Find program */
+    if( !EsOutIsProgramVisible( out, i_group ) )
+        return;
     p_pgrm = EsOutProgramFind( out, i_group );
     if( !p_pgrm )
         return;
@@ -1231,7 +1233,7 @@ static void EsOutProgramMeta( es_out_t *out, int i_group, const vlc_meta_t *p_me
         }
 
         /* ugly but it works */
-        if( EsOutIsProgramVisible( out, i_group ) && psz_text )
+        if( psz_text )
         {
             input_SendEventProgramDel( p_input, i_group );
             input_SendEventProgramAdd( p_input, i_group, psz_text );
@@ -1286,6 +1288,8 @@ static void EsOutProgramEpg( es_out_t *out, int i_group, const vlc_epg_t *p_epg
     char *psz_cat;
 
     /* Find program */
+    if( !EsOutIsProgramVisible( out, i_group ) )
+        return;
     p_pgrm = EsOutProgramFind( out, i_group );
     if( !p_pgrm )
         return;