Removing core-js from TS defs.
Removing core-js from TS defs.

ThatOdieGuy/downspout,ThatOdieGuy/downspout,ThatOdieGuy/downspout,ThatOdieGuy/SeedboxSync,ThatOdieGuy/SeedboxSync,ThatOdieGuy/SeedboxSync,ThatOdieGuy/SeedboxSync,ThatOdieGuy/downspout