Removed old, failing mkt install button tests.
Removed old, failing mkt install button tests.

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/addons-server,beni55/olympia,SuriyaaKudoIsc/olympia,harikishen/addons-server,harry-7/addons-server,elysium001/zamboni,mstriemer/zamboni,Prashant-Surya/addons-server,mrrrgn/olympia