fftools/ffprobe: Don't access AVProgram.(start|end)_time

These are internal fields.

Reviewed-by: Tobias Rapp <t.rapp@noa-archive.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

doc/ffprobe.xsd

@@ -269,10 +269,6 @@
       <xsd:attribute name="program_id"           type="xsd:int"    use="required"/>
       <xsd:attribute name="program_num"          type="xsd:int"    use="required"/>
       <xsd:attribute name="nb_streams"           type="xsd:int"    use="required"/>
-      <xsd:attribute name="start_time"           type="xsd:float"/>
-      <xsd:attribute name="start_pts"            type="xsd:long"/>
-      <xsd:attribute name="end_time"             type="xsd:float"/>
-      <xsd:attribute name="end_pts"              type="xsd:long"/>
       <xsd:attribute name="pmt_pid"              type="xsd:int"    use="required"/>
       <xsd:attribute name="pcr_pid"              type="xsd:int"    use="required"/>
     </xsd:complexType>

fftools/ffprobe.c

@@ -2844,10 +2844,6 @@ static int show_program(WriterContext *w, InputFile *ifile, AVProgram *program)
     print_int("nb_streams", program->nb_stream_indexes);
     print_int("pmt_pid", program->pmt_pid);
     print_int("pcr_pid", program->pcr_pid);
-    print_ts("start_pts", program->start_time);
-    print_time("start_time", program->start_time, &AV_TIME_BASE_Q);
-    print_ts("end_pts", program->end_time);
-    print_time("end_time", program->end_time, &AV_TIME_BASE_Q);
     if (do_show_program_tags)
         ret = show_tags(w, program->metadata, SECTION_ID_PROGRAM_TAGS);
     if (ret < 0)