atlas model: remove rpy on {left,right}_led_frame, as "rotation of body frames...

atlas model: remove rpy on {left,right}_led_frame, as "rotation of body frames not yet supported" by RBDL

models/atlas.urdf

@@ -2190,7 +2190,7 @@
     <inertial>
       <mass value="1e-5"/>
       <!-- collocate with parent link and remove mass from it -->
-      <origin rpy="0 -0.15 0.53" xyz="-0.089923 0.074553383 0.078086"/>
+      <origin xyz="-0.089923 0.074553383 0.078086"/>
       <inertia ixx="1e-6" ixy="0" ixz="0" iyy="1e-6" iyz="0" izz="1e-6"/>
     </inertial>
   </link>
@@ -2203,7 +2203,7 @@
     <inertial>
       <mass value="1e-5"/>
       <!-- collocate with parent link and remove mass from it -->
-      <origin rpy="0 -0.15 -0.53" xyz="-0.089923 -0.074486617 0.07908"/>
+      <origin xyz="-0.089923 -0.074486617 0.07908"/>
       <inertia ixx="1e-6" ixy="0" ixz="0" iyy="1e-6" iyz="0" izz="1e-6"/>
     </inertial>
   </link>