[PR] Remove accidental line from generics docs
[PR] Remove accidental line from generics docs

Summary: Closes https://github.com/facebook/flow/pull/3738

Differential Revision: D4898838

Pulled By: nmote

fbshipit-source-id: 308a0dc5d5e840ba6287794917a6f7a1d98a1a2f

TiddoLangerak/flow,mroch/flow,AgentME/flow,MichaelDeBoey/flow,JonathanUsername/flow,ylu1317/flow,JonathanUsername/flow,gabelevi/flow,ylu1317/flow,ylu1317/flow,claudiopro/flow,MichaelDeBoey/flow,nmote/flow,TiddoLangerak/flow,samwgoldman/flow,samwgoldman/flow,AgentME/flow,gabelevi/flow,JonathanUsername/flow,samwgoldman/flow,nmote/flow,nmote/flow,jamesgpearce/flow,mroch/flow,facebook/flow,claudiopro/flow,gabelevi/flow,jamesgpearce/flow,mroch/flow,popham/flow,mroch/flow,samwgoldman/flow,facebook/flow,fletcherw/flow,MichaelDeBoey/flow,mroch/flow,popham/flow,fletcherw/flow,mroch/flow,jamesgpearce/flow,samwgoldman/flow,popham/flow,jamesgpearce/flow,JonathanUsername/flow,gabelevi/flow,jamesgpearce/flow,popham/flow,facebook/flow,jamesgpearce/flow,claudiopro/flow,gabelevi/flow,JonathanUsername/flow,fletcherw/flow,nmote/flow,samwgoldman/flow,TiddoLangerak/flow,claudiopro/flow,AgentME/flow,MichaelDeBoey/flow,TiddoLangerak/flow,ylu1317/flow,popham/flow,fletcherw/flow,gabelevi/flow,fletcherw/flow,ylu1317/flow,samwgoldman/flow,nmote/flow,facebook/flow,MichaelDeBoey/flow,gabelevi/flow,AgentME/flow,facebook/flow,facebook/flow,jamesgpearce/flow,popham/flow,JonathanUsername/flow,popham/flow,facebook/flow,mroch/flow,nmote/flow,fletcherw/flow,claudiopro/flow,nmote/flow,JonathanUsername/flow,AgentME/flow,TiddoLangerak/flow