Removes non-standard Makefile command
Removes non-standard Makefile command

This fixes commit 6f63a5d2f05ab7100cfa44cbbe96d84dc3a076bf.

minesense/VisTrails,Nikea/VisTrails,minesense/VisTrails,Nikea/VisTrails,VisTrails/VisTrails,celiafish/VisTrails,Nikea/VisTrails,minesense/VisTrails,VisTrails/VisTrails,hjanime/VisTrails,minesense/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,hjanime/VisTrails,hjanime/VisTrails,hjanime/VisTrails,Nikea/VisTrails,celiafish/VisTrails,minesense/VisTrails,celiafish/VisTrails,hjanime/VisTrails,VisTrails/VisTrails,celiafish/VisTrails