Remove robot specific configurations

[mmurooka]

@gergondet Could you briefly confirm that the following PRs are in line with the discussion at https://github.com/isri-aist/BaselineWalkingController/pull/12? If there are no problems, I'll merge them all at the same time.

• https://github.com/isri-aist/BaselineWalkingController/pull/15 (this PR)
• https://github.com/isri-aist/LocomanipController/pull/4
• https://github.com/isri-aist/MultiContactController/pull/2
• https://github.com/isri-aist/mc-hrp2/pull/3
• https://github.com/isri-aist/mc_hrp5_p/pull/7
• https://github.com/isri-aist/PrivateDemoConfigs/commit/6b16989c505018e5ec3981608b2af91a165e706f

[gergondet]

@mmurooka

I went ahead and merged the PR for the modules, assuming you tested the controller PR with these changes I think it's ok to merge :)