progdocs: Remove outdated references in doxyref.h.

ASTERISK-29773

Change-Id: Ica93160d9158cc0e80c5fda829b80d1b49a6b9b9

cdr/cdr_odbc.c

@@ -21,10 +21,7 @@
  * \brief ODBC CDR Backend
  *
  * \author Brian K. West <brian@bkw.org>
- *
- * See also:
- * \arg http://www.unixodbc.org
- * \arg \ref Config_cdr
+ * http://www.unixodbc.org
  * \ingroup cdr_drivers
  */
 

cdr/cdr_pgsql.c

@@ -26,10 +26,6 @@
  *
  * \author Matthew D. Hardeman <mhardemn@papersoft.com>
  * PostgreSQL http://www.postgresql.org/
- *
- * See also
- * \arg \ref Config_cdr
- * PostgreSQL http://www.postgresql.org/
  * \ingroup cdr_drivers
  */
 

cdr/cdr_syslog.c

@@ -21,9 +21,6 @@
  * \brief syslog CDR logger
  *
  * \author Sean Bright <sean@malleable.com>
- *
- * See also
- * \arg \ref Config_cdr
  * \ingroup cdr_drivers
  */
 

cdr/cdr_tds.c

@@ -17,10 +17,7 @@
 /*!
  * \file
  * \brief FreeTDS CDR logger
- *
- * See also
- * \arg \ref Config_cdr
- * \arg http://www.freetds.org/
+ * http://www.freetds.org/
  * \ingroup cdr_drivers
  */