clear out tables from plugins when running specs
clear out tables from plugins when running specs

Change-Id: I87484e3feaa841a648449988b6226f39815e98a6
Reviewed-on: https://gerrit.instructure.com/5905
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>
Reviewed-by: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>

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