Remove dependency of pr2_arm_move_ik on pr2_kinematics (ros ticket #4865)

[ahendrix]

This prevents us from creating a stable release

trac data:

• Owner: mwise
• Reporter: wim
• Reported at: Fri Oct 29 14:03:31 2010
• URL: https://code.ros.org/trac/wg-ros-pkg/ticket/4865

[ahendrix]

[mwise] not going to happen for diamondback