Remove references to 'fileoverviewTags' which has been a noop since May 2012
Remove references to 'fileoverviewTags' which has been a noop since May 2012

Tested:
    TAP --sample ran all affected tests and none failed
    []

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=279100597

vobruba-martin/closure-compiler,vobruba-martin/closure-compiler,monetate/closure-compiler,Yannic/closure-compiler,ChadKillingsworth/closure-compiler,nawawi/closure-compiler,nawawi/closure-compiler,ChadKillingsworth/closure-compiler,google/closure-compiler,google/closure-compiler,Yannic/closure-compiler,monetate/closure-compiler,Yannic/closure-compiler,ChadKillingsworth/closure-compiler,nawawi/closure-compiler,monetate/closure-compiler,vobruba-martin/closure-compiler,google/closure-compiler,vobruba-martin/closure-compiler,monetate/closure-compiler,ChadKillingsworth/closure-compiler,Yannic/closure-compiler,nawawi/closure-compiler,google/closure-compiler