"if `is RandomAccessCollection`" is unnecessary
"if `is RandomAccessCollection`" is unnecessary

* remove the performance qualifiers on API redeclared from `Collection`, because they are necessarily satisfied.
hooman/swift,apple/swift,brentdax/swift,sschiau/swift,parkera/swift,austinzheng/swift,glessard/swift,natecook1000/swift,hooman/swift,xedin/swift,lorentey/swift,devincoughlin/swift,alblue/swift,harlanhaskins/swift,xwu/swift,JGiola/swift,gregomni/swift,gribozavr/swift,jopamer/swift,airspeedswift/swift,alblue/swift,JGiola/swift,benlangmuir/swift,jckarter/swift,devincoughlin/swift,practicalswift/swift,danielmartin/swift,gribozavr/swift,jopamer/swift,tkremenek/swift,benlangmuir/swift,gribozavr/swift,roambotics/swift,airspeedswift/swift,CodaFi/swift,JGiola/swift,CodaFi/swift,roambotics/swift,allevato/swift,nathawes/swift,jmgc/swift,harlanhaskins/swift,hooman/swift,atrick/swift,shajrawi/swift,airspeedswift/swift,aschwaighofer/swift,parkera/swift,allevato/swift,stephentyrone/swift,xedin/swift,jopamer/swift,airspeedswift/swift,tkremenek/swift,xedin/swift,gribozavr/swift,devincoughlin/swift,stephentyrone/swift,glessard/swift,karwa/swift,benlangmuir/swift,austinzheng/swift,xwu/swift,karwa/swift,nathawes/swift,karwa/swift,parkera/swift,alblue/swift,allevato/swift,practicalswift/swift,austinzheng/swift,nathawes/swift,danielmartin/swift,amraboelela/swift,tkremenek/swift,xedin/swift,practicalswift/swift,glessard/swift,stephentyrone/swift,CodaFi/swift,amraboelela/swift,practicalswift/swift,harlanhaskins/swift,shahmishal/swift,devincoughlin/swift,jckarter/swift,CodaFi/swift,shahmishal/swift,tkremenek/swift,jckarter/swift,jopamer/swift,stephentyrone/swift,brentdax/swift,gregomni/swift,tkremenek/swift,xedin/swift,xwu/swift,aschwaighofer/swift,stephentyrone/swift,shajrawi/swift,shajrawi/swift,jckarter/swift,CodaFi/swift,jckarter/swift,natecook1000/swift,karwa/swift,aschwaighofer/swift,nathawes/swift,natecook1000/swift,devincoughlin/swift,jmgc/swift,karwa/swift,austinzheng/swift,shajrawi/swift,danielmartin/swift,glessard/swift,glessard/swift,harlanhaskins/swift,rudkx/swift,alblue/swift,alblue/swift,sschiau/swift,amraboelela/swift,natecook1000/swift,CodaFi/swift,airspeedswift/swift,ahoppen/swift,roambotics/swift,allevato/swift,lorentey/swift,karwa/swift,lorentey/swift,gribozavr/swift,glessard/swift,shajrawi/swift,xedin/swift,devincoughlin/swift,sschiau/swift,parkera/swift,amraboelela/swift,tkremenek/swift,atrick/swift,jckarter/swift,brentdax/swift,natecook1000/swift,amraboelela/swift,CodaFi/swift,jmgc/swift,nathawes/swift,danielmartin/swift,harlanhaskins/swift,roambotics/swift,lorentey/swift,practicalswift/swift,gregomni/swift,amraboelela/swift,JGiola/swift,danielmartin/swift,xwu/swift,stephentyrone/swift,benlangmuir/swift,karwa/swift,lorentey/swift,atrick/swift,aschwaighofer/swift,jmgc/swift,allevato/swift,shahmishal/swift,jopamer/swift,xwu/swift,parkera/swift,gregomni/swift,natecook1000/swift,austinzheng/swift,lorentey/swift,airspeedswift/swift,benlangmuir/swift,hooman/swift,apple/swift,sschiau/swift,xedin/swift,alblue/swift,parkera/swift,brentdax/swift,gregomni/swift,sschiau/swift,ahoppen/swift,brentdax/swift,harlanhaskins/swift,aschwaighofer/swift,atrick/swift,allevato/swift,shahmishal/swift,sschiau/swift,practicalswift/swift,xwu/swift,shajrawi/swift,rudkx/swift,sschiau/swift,austinzheng/swift,jopamer/swift,JGiola/swift,brentdax/swift,rudkx/swift,shahmishal/swift,rudkx/swift,jopamer/swift,ahoppen/swift,hooman/swift,parkera/swift,xwu/swift,danielmartin/swift,lorentey/swift,shahmishal/swift,practicalswift/swift,benlangmuir/swift,aschwaighofer/swift,apple/swift,lorentey/swift,hooman/swift,karwa/swift,jmgc/swift,atrick/swift,gregomni/swift,alblue/swift,shajrawi/swift,parkera/swift,JGiola/swift,shahmishal/swift,gribozavr/swift,sschiau/swift,shahmishal/swift,rudkx/swift,rudkx/swift,nathawes/swift,apple/swift,nathawes/swift,airspeedswift/swift,ahoppen/swift,apple/swift,roambotics/swift,jmgc/swift,austinzheng/swift,hooman/swift,gribozavr/swift,apple/swift,brentdax/swift,danielmartin/swift,ahoppen/swift,shajrawi/swift,xedin/swift,devincoughlin/swift,aschwaighofer/swift,atrick/swift,amraboelela/swift,devincoughlin/swift,gribozavr/swift,allevato/swift,harlanhaskins/swift,ahoppen/swift,roambotics/swift,practicalswift/swift,jmgc/swift,stephentyrone/swift,tkremenek/swift,jckarter/swift,natecook1000/swift