Revert "rqt_robot_plugins 0.2.10"

This reverts commit ef1568a165ea3efb8b90d1d37d56925edad056ac, which tries to fetch the version that hasn't yet pushed into release repository.

This commit itself on rosdistro was my mistake (I committed before I tried to push into release repo). But after having committed, I'm having a problem to push into release repository (by [this issue](http://goo.gl/Q3jJP)).