Cherry-pick to 6.7: Remove requirements for geoip and user-agent plugins (#30866)#31167

Merged

kaiyan-sheng merged 1 commit intoelastic:6.7from kaiyan-sheng:backport/6.7/pr-30866

Feb 16, 2019

+6-5

Commits on Feb 14, 2019

Remove requirements for geoip and user-agent plugins (elastic#30866 )
kaiyan-sheng
committed