net/http: remove unused isLitOrSingle and isNotToken

isLitOrSingle and isNotToken are private and unused.

Change-Id: I07718d4496e92d5f75ed74986e174a8aa1f70a88
GitHub-Last-Rev: 722c4dccd8
GitHub-Pull-Request: golang/go#76216
Reviewed-on: https://go-review.googlesource.com/c/go/+/718700
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Sean Liao <sean@liao.dev>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: Sean Liao <sean@liao.dev>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

src/net/http/http.go

@@ -119,10 +119,6 @@ func removeEmptyPort(host string) string {
 	return host
 }
 
-func isNotToken(r rune) bool {
-	return !httpguts.IsTokenRune(r)
-}
-
 // isToken reports whether v is a valid token (https://www.rfc-editor.org/rfc/rfc2616#section-2.2).
 func isToken(v string) bool {
 	// For historical reasons, this function is called ValidHeaderFieldName (see issue #67031).

src/net/http/pattern.go

@@ -394,14 +394,6 @@ func inverseRelationship(r relationship) relationship {
 	}
 }
 
-// isLitOrSingle reports whether the segment is a non-dollar literal or a single wildcard.
-func isLitOrSingle(seg segment) bool {
-	if seg.wild {
-		return !seg.multi
-	}
-	return seg.s != "/"
-}
-
 // describeConflict returns an explanation of why two patterns conflict.
 func describeConflict(p1, p2 *pattern) string {
 	mrel := p1.compareMethods(p2)