Update teleop include launch args

launch/teleop_ps3_bluetooth.launch

@@ -3,19 +3,17 @@
 <launch>
 
   <arg name="ns"            default="helena" />
-  <arg name="path"          default="$(find iri_teleop_launch)"/>
-  <arg name="config_file"   default="$(arg path)/config/ps3_bt_teleop.yaml" />
+  <arg name="config_file"   default="$(find iri_teleop_launch)/config/ps3_bt_teleop.yaml" />
   <arg name="twist_topic"   default="/$(arg ns)/teleop/cmd_vel"/>
   <arg name="joy_topic"     default="/$(arg ns)/joy"/>
   <arg name="run_joy"       default="true"/>
     <arg name="device"          default="/dev/input/ps3joy" />
-    <arg name="joy_config_file" default="$(arg path)/config/joy.yaml" />
+    <arg name="joy_config_file" default="$(find iri_teleop_launch)/config/joy.yaml" />
   <arg name="output"        default="screen" />
   <arg name="launch_prefix" default="" />
 
   <include file="$(find iri_teleop_launch)/launch/joystick_teleop.launch">
     <arg name="ns"               value="$(arg ns)"/>
-    <arg name="path"             value="$(arg path)"/>
     <arg name="config_file"      value="$(arg config_file)"/>
     <arg name="twist_topic"      value="$(arg twist_topic)"/>
     <arg name="joy_topic"        value="$(arg joy_topic)"/>