Access denied; you need (at least one of) the SUPER privilege(s) for this operation

Either remove the DEFINER=.. statement from your sqldump file, or replace the user values with CURRENT_USER.

The MySQL server provided by RDS does not allow a DEFINER syntax for another user (in my experience).

You can use a sed script to remove them from the file:

sed 's/\sDEFINER=`[^`]*`@`[^`]*`//g' -i oldfile.sql