Remove search from README.
Remove search from README.

Not implemented yet.

nylas/sync-engine,closeio/nylas,PriviPK/privipk-sync-engine,EthanBlackburn/sync-engine,wakermahmud/sync-engine,closeio/nylas,jobscore/sync-engine,EthanBlackburn/sync-engine,ErinCall/sync-engine,PriviPK/privipk-sync-engine,nylas/sync-engine,nylas/sync-engine,rmasters/inbox,EthanBlackburn/sync-engine,PriviPK/privipk-sync-engine,closeio/nylas,nylas/sync-engine,ErinCall/sync-engine,rmasters/inbox,closeio/nylas,rmasters/inbox,Eagles2F/sync-engine,wakermahmud/sync-engine,Eagles2F/sync-engine,ErinCall/sync-engine,EthanBlackburn/sync-engine,jobscore/sync-engine,jobscore/sync-engine,wakermahmud/sync-engine,jobscore/sync-engine,ErinCall/sync-engine,EthanBlackburn/sync-engine,Eagles2F/sync-engine,wakermahmud/sync-engine,PriviPK/privipk-sync-engine,gale320/sync-engine,gale320/sync-engine,gale320/sync-engine,gale320/sync-engine,PriviPK/privipk-sync-engine,wakermahmud/sync-engine,Eagles2F/sync-engine,gale320/sync-engine,rmasters/inbox,ErinCall/sync-engine,Eagles2F/sync-engine