remove unused api controller action
remove unused api controller action

Change-Id: I6b6f53510befeac1928611a21fa50db2b8f4e5e5
Reviewed-on: https://gerrit.instructure.com/4589
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>
Reviewed-by: Ryan Shaw <ea3cd978650417470535f3a4725b6b5042a6ab59@instructure.com>

wye0220/shindig-canvas,usmschuck/canvas,greyhwndz/canvas-lms,ShreniiNepal/shrenii_lmp,arrivu/arrivu-lms,efrj/canvas-lms,wimemx/Canvas,sfu/canvas-lms,efrj/canvas-lms,efrj/canvas-lms,SwinburneOnline/canvas-lms,usmschuck/canvas,usmschuck/canvas,narigone/canvas,rup/Tarrax,whalejasmine/canvas-lms,utkarshx/canvas-lms,tgroshon/canvas-lms,jay3126/canvas-lms,roxolan/canvas-lms,parbros/red-innovadores-lms,Jyaasa/canvas-lms,arrivu/jigsaw-lms,Unow/ins,HotChalk/canvas-lms,antoniuslin/canvas-lms,gbleydon/canvas-lms,arrivu/qibla-ecampus,jay3126/canvas-lms,tgroshon/canvas-lms,SwinburneOnline/canvas-lms,parbros/red-innovadores-lms,grahamb/canvas-lms,eCNAP/CANVAS,loganrun/pincan,nditech/red-innovadores-lms,shidao-fm/canvas-lms,samuels410/greatlakes-lms,jay3126/canvas-lms,merichar/canvas-lms,narigone/canvas,dgynn/canvas-lms,venturehive/canvas-lms,Unow/canvas-lms,juoni/canvas-lms,wrdsb/canvas-lms,Jyaasa/canvas-lms,icelab/canvas,whalejasmine/canvas-lms,landonwilkins/canvas-lms,djbender/canvas-lms,arrivu/qibla-ecampus,HotChalk/canvas-lms,arrivu/hiring-site,juoni/canvas-lms,ShreniiNepal/shrenii_lmp,venturehive/canvas-lms,Jyaasa/canvas-lms,greyhwndz/canvas-lms,em2/canvas-lms,fronteerio/canvas-lms,instructure/canvas-lms,kyroskoh/canvas-lms,snehakachroo1/LSI_replica,grahamb/canvas-lms,tgroshon/canvas-lms,grahamb/canvas-lms,whalejasmine/canvas-lms,wrdsb/canvas-lms,arrivu/qibla-ecampus,AndranikMarkosyan/lms,juoni/canvas-lms,arrivu/hoodemo,antoniuslin/canvas-lms,em2/canvas-lms,arrivu/hiring-site,instructure/canvas-lms,utkarshx/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,wye0220/shindig-canvas,arrivu/arrivu-lms,antoniuslin/canvas-lms,em2/canvas-lms,instructure/canvas-lms,sdeleon28/canvas-lms,matematikk-mooc/canvas-lms,leftplusrightllc/canvas-lms,ottenhoff/canvas-lms,sfu/canvas-lms,snehakachroo1/LSI_replica,nditech/red-innovadores-lms,shidao-fm/canvas-lms,Rvor/canvas-lms,wye0220/shindig-canvas,HotChalk/canvas-lms,instructure/canvas-lms,samuels410/greatlakes-lms,Unow/ins,arrivu/jigsaw-lms,instructure/canvas-lms,Unow/ins,SwinburneOnline/canvas-lms,juoni/canvas-lms,djbender/canvas-lms,shidao-fm/canvas-lms,Rvor/canvas-lms,fronteerio/canvas-lms,va7map/canvas-lms,eCNAP/CANVAS,icelab/canvas,nditech/red-innovadores-lms,utkarshx/canvas-lms,greyhwndz/canvas-lms,Unow/canvas-lms,instructure/canvas-lms,rup/Tarrax,leftplusrightllc/canvas-lms,ottenhoff/canvas-lms,leftplusrightllc/canvas-lms,djbender/canvas-lms,narigone/canvas,utkarshx/canvas-lms,wrdsb/canvas-lms,redconfetti/canvas-lms,efrj/canvas-lms,usmschuck/canvas,AndranikMarkosyan/lms,dgynn/canvas-lms,ankithbti/canvas_lms,arrivu/arrivu-lms,samuels410/greatlakes-lms,wrdsb/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,va7map/canvas-lms,skmezanul/canvas-lms,roxolan/canvas-lms,snehakachroo1/LSI_replica,snehakachroo1/LSI_replica,sli7246/canvas_branch,gbleydon/canvas-lms,sfu/canvas-lms,AndranikMarkosyan/lms,merichar/canvas-lms,shidao-fm/canvas-lms,venturehive/canvas-lms,rup/Tarrax,ShreniiNepal/shrenii_lmp,arrivu/hoodemo,skmezanul/canvas-lms,fronteerio/canvas-lms,sfu/canvas-lms,sli7246/canvas_branch,matematikk-mooc/canvas-lms,Rvor/canvas-lms,faraazkhan/canvas,merichar/canvas-lms,loganrun/pincan,samuels410/greatlakes-lms,tgroshon/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,arrivu/jigsaw-lms,sli7246/canvas_branch,va7map/canvas-lms,fronteerio/canvas-lms,whalejasmine/canvas-lms,grahamb/canvas-lms,arrivu/hiring-site,dgynn/canvas-lms,wimemx/Canvas,Rvor/canvas-lms,venturehive/canvas-lms,jay3126/canvas-lms,sdeleon28/canvas-lms,redconfetti/canvas-lms,skmezanul/canvas-lms,sdeleon28/canvas-lms,faraazkhan/canvas,SwinburneOnline/canvas-lms,AndranikMarkosyan/lms,arrivu/hoodemo,landonwilkins/canvas-lms,leftplusrightllc/canvas-lms,va7map/canvas-lms,loganrun/pincan,wimemx/Canvas,landonwilkins/canvas-lms,ankithbti/canvas_lms,roxolan/canvas-lms,nditech/red-innovadores-lms,sdeleon28/canvas-lms,gbleydon/canvas-lms,djbender/canvas-lms,skmezanul/canvas-lms,kyroskoh/canvas-lms,parbros/red-innovadores-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,Jyaasa/canvas-lms,kyroskoh/canvas-lms,icelab/canvas,ankithbti/canvas_lms,greyhwndz/canvas-lms,antoniuslin/canvas-lms,eCNAP/CANVAS,matematikk-mooc/canvas-lms,Unow/canvas-lms,eCNAP/CANVAS,ottenhoff/canvas-lms,ShreniiNepal/shrenii_lmp,kyroskoh/canvas-lms,landonwilkins/canvas-lms,faraazkhan/canvas,redconfetti/canvas-lms,dgynn/canvas-lms,roxolan/canvas-lms,narigone/canvas