Revert "lineBy and moveBy can now accept multiple instructions (lineBy({x/y}, {x/y}, etc);	"
Revert "lineBy and moveBy can now accept multiple instructions (lineBy({x/y}, {x/y}, etc);	"

This reverts commit 4cb49a379b2592a68145427ae228fa67a77442cb.

cloudera/art-widgets,cloudera/art,anutron/art-widgets