ignition-cmake2 2.6.1 (#1225)
ignition-cmake2 2.6.1 (#1225)

* remove old patch
* update  bottle.

Co-authored-by: Steve Peters <19cdd629ec3b4ea4663c77a4169548f370fdc02f@openrobotics.org>
osrf/homebrew-simulation,j-rivero/homebrew-simulation,scpeters/homebrew-simulation