blockhash/main.go: Revert now-unnecessary const rename

cmd/blockhash/main.go

@@ -59,9 +59,9 @@ func procPackage(pkg *packages.Package, w io.Writer) {
 }
 
 var (
-	packageFormat    = "// Code generated by cmd/blockhash; DO NOT EDIT.\n\npackage %v\n\n"
-	hashMethodFormat = "\nfunc (%v%v) Hash() (uint64, uint64) {\n\treturn %v, %v\n}\n"
-	constFormat      = "\thash%v"
+	packageFormat = "// Code generated by cmd/blockhash; DO NOT EDIT.\n\npackage %v\n\n"
+	methodFormat  = "\nfunc (%v%v) Hash() (uint64, uint64) {\n\treturn %v, %v\n}\n"
+	constFormat   = "\thash%v"
 )
 
 type hashBuilder struct {
@@ -209,7 +209,7 @@ func (b *hashBuilder) writeMethods(w io.Writer) {
 			h = "0"
 		}
 
-		if _, err := fmt.Fprintf(w, hashMethodFormat, recvName, name, "hash"+name, h); err != nil {
+		if _, err := fmt.Fprintf(w, methodFormat, recvName, name, "hash"+name, h); err != nil {
 			log.Fatalln(err)
 		}
 	}