doxygen: remove refs to stomp pkgs

As they've been moved to ros-industrial/stomp_ros.

Author: gavanderhoorn

doxygen.config

@@ -743,7 +743,7 @@ WARN_LOGFILE           =
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = constrained_ik stomp_core stomp_moveit stomp_plugins
+INPUT                  = constrained_ik
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses