Revert "Increase in-process max open files limit"

This reverts commit 7bf545f5e5.

main.go

@@ -8,7 +8,6 @@ import (
 	"net/http"
 	"os"
 	"runtime"
-	"syscall"
 	"time"
 )
 
@@ -33,10 +32,6 @@ func main() {
 		return
 	}
 
-	if err := increaseResourceLimits(); err != nil {
-		log.Fatalf("Couldn't increase resource limits: %s", err)
-	}
-
 	// Validate rate argument
 	if *rate == 0 {
 		log.Fatal("rate can't be zero")
@@ -107,11 +102,3 @@ func attack(targets Targets, ordering string, rate uint, duration time.Duration,
 		rep.Add(<-responses)
 	}
 }
-
-func increaseResourceLimits() error {
-	limit := &syscall.Rlimit{Cur: syscall.RLIM_INFINITY}
-	if err := syscall.Setrlimit(syscall.RLIMIT_NOFILE, limit); err != nil {
-		return err
-	}
-	return nil
-}