[build-script] Don't set env variables when using lldb-dotest
[build-script] Don't set env variables when using lldb-dotest

We already configure lldb-dotest with the swift compiler. This patch
does the same for the path to the swift libraries.

allevato/swift,amraboelela/swift,austinzheng/swift,karwa/swift,tkremenek/swift,gribozavr/swift,CodaFi/swift,amraboelela/swift,devincoughlin/swift,roambotics/swift,roambotics/swift,JGiola/swift,xedin/swift,CodaFi/swift,airspeedswift/swift,atrick/swift,sschiau/swift,CodaFi/swift,shahmishal/swift,parkera/swift,tjw/swift,tkremenek/swift,brentdax/swift,rudkx/swift,benlangmuir/swift,airspeedswift/swift,brentdax/swift,jckarter/swift,natecook1000/swift,tkremenek/swift,shahmishal/swift,benlangmuir/swift,shahmishal/swift,aschwaighofer/swift,CodaFi/swift,amraboelela/swift,CodaFi/swift,rudkx/swift,benlangmuir/swift,xedin/swift,nathawes/swift,danielmartin/swift,jckarter/swift,shajrawi/swift,jmgc/swift,apple/swift,ahoppen/swift,ahoppen/swift,harlanhaskins/swift,stephentyrone/swift,aschwaighofer/swift,gribozavr/swift,natecook1000/swift,karwa/swift,xedin/swift,parkera/swift,tjw/swift,jckarter/swift,austinzheng/swift,glessard/swift,roambotics/swift,rudkx/swift,austinzheng/swift,apple/swift,austinzheng/swift,devincoughlin/swift,devincoughlin/swift,xwu/swift,jmgc/swift,hooman/swift,harlanhaskins/swift,stephentyrone/swift,alblue/swift,benlangmuir/swift,devincoughlin/swift,xedin/swift,xedin/swift,JGiola/swift,gribozavr/swift,shajrawi/swift,gregomni/swift,sschiau/swift,xwu/swift,nathawes/swift,gregomni/swift,shahmishal/swift,lorentey/swift,shahmishal/swift,shahmishal/swift,jopamer/swift,aschwaighofer/swift,glessard/swift,huonw/swift,tkremenek/swift,natecook1000/swift,glessard/swift,sschiau/swift,amraboelela/swift,jckarter/swift,rudkx/swift,lorentey/swift,practicalswift/swift,jmgc/swift,roambotics/swift,apple/swift,harlanhaskins/swift,roambotics/swift,glessard/swift,jopamer/swift,jopamer/swift,atrick/swift,alblue/swift,parkera/swift,parkera/swift,harlanhaskins/swift,CodaFi/swift,huonw/swift,airspeedswift/swift,jopamer/swift,practicalswift/swift,nathawes/swift,aschwaighofer/swift,atrick/swift,atrick/swift,xwu/swift,shahmishal/swift,huonw/swift,jopamer/swift,lorentey/swift,lorentey/swift,hooman/swift,gribozavr/swift,practicalswift/swift,parkera/swift,jmgc/swift,tjw/swift,karwa/swift,stephentyrone/swift,gribozavr/swift,devincoughlin/swift,apple/swift,gregomni/swift,parkera/swift,ahoppen/swift,austinzheng/swift,allevato/swift,lorentey/swift,danielmartin/swift,lorentey/swift,brentdax/swift,austinzheng/swift,lorentey/swift,natecook1000/swift,sschiau/swift,xedin/swift,karwa/swift,allevato/swift,practicalswift/swift,devincoughlin/swift,jopamer/swift,xwu/swift,sschiau/swift,huonw/swift,huonw/swift,sschiau/swift,ahoppen/swift,danielmartin/swift,practicalswift/swift,harlanhaskins/swift,parkera/swift,practicalswift/swift,shajrawi/swift,gregomni/swift,danielmartin/swift,karwa/swift,devincoughlin/swift,amraboelela/swift,shajrawi/swift,gribozavr/swift,huonw/swift,allevato/swift,harlanhaskins/swift,austinzheng/swift,apple/swift,karwa/swift,jckarter/swift,roambotics/swift,alblue/swift,danielmartin/swift,stephentyrone/swift,hooman/swift,tjw/swift,shajrawi/swift,lorentey/swift,shahmishal/swift,hooman/swift,aschwaighofer/swift,amraboelela/swift,parkera/swift,stephentyrone/swift,brentdax/swift,huonw/swift,tjw/swift,alblue/swift,glessard/swift,gribozavr/swift,karwa/swift,xwu/swift,shajrawi/swift,benlangmuir/swift,benlangmuir/swift,amraboelela/swift,danielmartin/swift,jmgc/swift,tjw/swift,jckarter/swift,JGiola/swift,shajrawi/swift,nathawes/swift,JGiola/swift,gregomni/swift,sschiau/swift,airspeedswift/swift,atrick/swift,ahoppen/swift,natecook1000/swift,stephentyrone/swift,jopamer/swift,nathawes/swift,aschwaighofer/swift,hooman/swift,practicalswift/swift,harlanhaskins/swift,alblue/swift,rudkx/swift,brentdax/swift,devincoughlin/swift,airspeedswift/swift,karwa/swift,xwu/swift,brentdax/swift,danielmartin/swift,jmgc/swift,jckarter/swift,ahoppen/swift,practicalswift/swift,tkremenek/swift,tkremenek/swift,hooman/swift,airspeedswift/swift,apple/swift,aschwaighofer/swift,alblue/swift,JGiola/swift,brentdax/swift,allevato/swift,jmgc/swift,natecook1000/swift,stephentyrone/swift,nathawes/swift,hooman/swift,allevato/swift,glessard/swift,tjw/swift,JGiola/swift,tkremenek/swift,xedin/swift,sschiau/swift,gribozavr/swift,rudkx/swift,xwu/swift,alblue/swift,xedin/swift,natecook1000/swift,nathawes/swift,shajrawi/swift,gregomni/swift,atrick/swift,airspeedswift/swift,allevato/swift,CodaFi/swift