removed unused launch files and updated them

launch/publish_handeye_link.launch

-
-<launch>
-	<node pkg="tf" 
-		type="static_transform_publisher" 
-		name="link1_broadcaster" 
-		args="0.006185008136148641 -0.0032844866064458598 0.06609371720891637 0.01484808722103758 0.01054777027546667 0.15708869884249635 0.9874165380142588 iri_wam_link_base chaperone 100"
-	 />
-</launch>

launch/wam_follow_device.launch

@@ -8,7 +8,6 @@
         name = "iri_htc_vive_tracker"
         output = "screen">
          <param name="~target_frame_name" type="string" value="$(arg device)"/>
-        
          <remap from="~filtered_odometry" to="/filtered_odometry"/>
          <remap from="~new_pose" to="/iri_wam/pose_surface"/>
     </node>