Remove unnecessary repositioning
Remove unnecessary repositioning

Summary: The reason of an expression should already be positioned

Reviewed By: panagosg7

Differential Revision: D15421898

fbshipit-source-id: bd730f9b5a125601f04a13977c4dd10f9d991b35

gabelevi/flow,mroch/flow,mroch/flow,mroch/flow,samwgoldman/flow,mroch/flow,samwgoldman/flow,samwgoldman/flow,facebook/flow,facebook/flow,facebook/flow,mroch/flow,facebook/flow,samwgoldman/flow,facebook/flow,mroch/flow,gabelevi/flow,gabelevi/flow,samwgoldman/flow,mroch/flow,facebook/flow,gabelevi/flow,samwgoldman/flow,gabelevi/flow,gabelevi/flow,samwgoldman/flow,gabelevi/flow,facebook/flow