x/tools/container/intsets: remove unused function
Found with honnef.co/go/tools/cmd/unused.
Change-Id: I54dab41d423050b883a3af1f5bb8c5119e2b7100
Reviewed-on: https://go-review.googlesource.com/37602
Reviewed-by: Alan Donovan <adonovan@google.com>
diff --git a/container/intsets/util.go b/container/intsets/util.go
index dd1db86b1..6710278 100644
--- a/container/intsets/util.go
+++ b/container/intsets/util.go
@@ -4,16 +4,6 @@
package intsets
-// From Hacker's Delight, fig 5.2.
-func popcountHD(x uint32) int {
- x -= (x >> 1) & 0x55555555
- x = (x & 0x33333333) + ((x >> 2) & 0x33333333)
- x = (x + (x >> 4)) & 0x0f0f0f0f
- x = x + (x >> 8)
- x = x + (x >> 16)
- return int(x & 0x0000003f)
-}
-
var a [1 << 8]byte
func init() {
