Remove check for eventmachine gem
What does this Merge Request do and why?
When the thin gem was removed from gitlab: gitlab!89258 (merged), it also removed eventmachine gem.
This causes gdk doctor to fail about eventmachine because it's not installed. This MR removed the check so gdk doctor can pass.
CC @jay_mccure
Merge Request checklist
-
This change is backward compatible. If not, please include steps to communicate to our users. -
Tests added for new functionality. If not, please raise Issue to follow-up. -
Documentation added/updated, if needed. -
gdk doctortest added, if needed. -
Add the ~highlightlabel if this MR should be included in theCHANGELOG.md.