Revert "interpreter: Add a way to copy and environment object"
Revert "interpreter: Add a way to copy and environment object"

This reverts commit fcaf319e49aaaf548a814977c4c5e864fa5a4f77.

This should be done automatically on assignment, see #831

wberrier/meson,QuLogic/meson,pexip/meson,centricular/meson,thiblahute/meson,jpakkane/meson,QuLogic/meson,pexip/meson,fmuellner/meson,rhd/meson,fmuellner/meson,becm/meson,jeandet/meson,QuLogic/meson,jeandet/meson,centricular/meson,mesonbuild/meson,MathieuDuponchelle/meson,trhd/meson,thiblahute/meson,jpakkane/meson,trhd/meson,jeandet/meson,centricular/meson,trhd/meson,jeandet/meson,jpakkane/meson,thiblahute/meson,centricular/meson,MathieuDuponchelle/meson,wberrier/meson,becm/meson,fmuellner/meson,thiblahute/meson,becm/meson,pexip/meson,trhd/meson,aaronp24/meson,jpakkane/meson,QuLogic/meson,pexip/meson,ernestask/meson,ernestask/meson,thiblahute/meson,trhd/meson,trhd/meson,MathieuDuponchelle/meson,wberrier/meson,jeandet/meson,mesonbuild/meson,ernestask/meson,wberrier/meson,centricular/meson,QuLogic/meson,mesonbuild/meson,MathieuDuponchelle/meson,fmuellner/meson,thiblahute/meson,jeandet/meson,aaronp24/meson,rhd/meson,MathieuDuponchelle/meson,centricular/meson,rhd/meson,rhd/meson,trhd/meson,pexip/meson,becm/meson,fmuellner/meson,mesonbuild/meson,wberrier/meson,wberrier/meson,mesonbuild/meson,MathieuDuponchelle/meson,pexip/meson,wberrier/meson,ernestask/meson,ernestask/meson,thiblahute/meson,jpakkane/meson,mesonbuild/meson,fmuellner/meson,mesonbuild/meson,rhd/meson,QuLogic/meson,mesonbuild/meson,ernestask/meson,becm/meson,fmuellner/meson,pexip/meson,rhd/meson,ernestask/meson,aaronp24/meson,jeandet/meson,jeandet/meson,jpakkane/meson,aaronp24/meson,rhd/meson,centricular/meson,aaronp24/meson,jpakkane/meson,fmuellner/meson,MathieuDuponchelle/meson,trhd/meson,MathieuDuponchelle/meson,ernestask/meson,thiblahute/meson,centricular/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,aaronp24/meson,pexip/meson,becm/meson,aaronp24/meson,trhd/meson,ernestask/meson,pexip/meson,aaronp24/meson,pexip/meson,QuLogic/meson,becm/meson,becm/meson,MathieuDuponchelle/meson,becm/meson,QuLogic/meson,wberrier/meson,becm/meson,QuLogic/meson,rhd/meson,aaronp24/meson,jpakkane/meson,fmuellner/meson,jeandet/meson,thiblahute/meson