Reduced token size

src/build/ast/Loop.go

@@ -1,12 +1,6 @@
 package ast
 
-import "fmt"
-
 // Loop represents a block of repeatable statements.
 type Loop struct {
 	Body AST
 }
-
-func (node *Loop) String() string {
-	return fmt.Sprintf("(loop %s)", node.Body)
-}