internal/runtime/maps: remove unused var bitsetDeleted

Change-Id: Ie9e5c2627dc9a7ae1e8186f2c4d0a7a1955ec707
GitHub-Last-Rev: 4164192
GitHub-Pull-Request: #74942
Reviewed-on: https://go-review.googlesource.com/c/go/+/694255
Reviewed-by: Dmitri Shuralyov <[email protected]>
Reviewed-by: Jorropo <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Michael Pratt <[email protected]>
Auto-Submit: Jorropo <[email protected]>

Author: cuiweixie

src/internal/runtime/maps/group.go

@@ -22,10 +22,9 @@ const (
 	ctrlEmpty   ctrl = 0b10000000
 	ctrlDeleted ctrl = 0b11111110
 
-	bitsetLSB     = 0x0101010101010101
-	bitsetMSB     = 0x8080808080808080
-	bitsetEmpty   = bitsetLSB * uint64(ctrlEmpty)
-	bitsetDeleted = bitsetLSB * uint64(ctrlDeleted)
+	bitsetLSB   = 0x0101010101010101
+	bitsetMSB   = 0x8080808080808080
+	bitsetEmpty = bitsetLSB * uint64(ctrlEmpty)
 )
 
 // bitset represents a set of slots within a group.