Remove modification to execution context in strict mode.
Remove modification to execution context in strict mode.

Nogrod/jint,sebastienros/jint,mgentile/jint,Nogrod/jint,sanyaade-iot/jint,djMax/jint,mgentile/jint,santiagoaguiar/jint,fvaneijk/jint,ImagineLearning/Jint,honestegg/jint,sanyaade-iot/jint,reidyd/jint,flts/jint,flts/jint,hnafar/jint,ImagineLearning/Jint,tylerjwatson/jint,reidyd/jint,santiagoaguiar/jint,sebastienros/jint,djMax/jint,honestegg/jint,chaquotay/jint,fvaneijk/jint,hnafar/jint,chaquotay/jint