No need to save most label objects

src/js/parser/javascript/any_character.js

@@ -5,6 +5,6 @@ export default _.extend({}, Base, {
   type: 'any-character',
 
   _render() {
-    this.label = this.renderLabel('any character');
+    this.renderLabel('any character');
   }
 });

src/js/parser/javascript/base.js

@@ -65,12 +65,11 @@ export default {
 
     this.container.addClass('placeholder');
 
-    this.label = this.renderLabel(this.textValue);
-
-    this.label.select('rect').attr({
-      rx: 10,
-      ry: 10
-    });
+    this.renderLabel(this.textValue)
+      .select('rect').attr({
+        rx: 10,
+        ry: 10
+      });
   },
 
   _position() {

src/js/parser/javascript/escape.js

@@ -13,12 +13,11 @@ export default _.extend({}, Base, {
   },
 
   _render() {
-    this.label = this.renderLabel(_.result(this, this.code()));
-
-    this.label.select('rect').attr({
-      rx: 3,
-      ry: 3
-    });
+    this.renderLabel(_.result(this, this.code()))
+      .select('rect').attr({
+        rx: 3,
+        ry: 3
+      });
   },
 
   // Escape code mappings

src/js/parser/javascript/literal.js

@@ -5,11 +5,10 @@ export default _.extend({}, Base, {
   type: 'literal',
 
   _render() {
-    this.label = this.renderLabel('"' + this.literal.textValue + '"');
-
-    this.label.select('rect').attr({
-      rx: 3,
-      ry: 3
-    });
+    this.renderLabel('"' + this.literal.textValue + '"')
+      .select('rect').attr({
+        rx: 3,
+        ry: 3
+      });
   }
 });