Revert "shut up rvm installer complaining about path"

This reverts commit f5ee3a96cbd39941d772e10bb8f8ea20e12d6f67.
Revert "add rvmrc"

This reverts commit d3d116a5f1cff97cbf154b434450b75ffd12164a.
Revert "giving rvm another try"

This reverts commit bcd7f4d431ccfb846c3cbd3213d854d5eac91ab2.