Remove vestigial XML blocks generator

Change-Id: I886416cefa1a0eb34311e656847fb5dc4c433bf0

appinventor/build-common.xml

@@ -406,14 +406,4 @@
          target="JsonComponentDescription"/>
   </target>
 
-  <!-- ====================================================================
-       components_XmlComponentDescription builds:
-       - build/components/ya_lang_def.xml
-       ==================================================================== -->
-  
-  <target name="components_XmlComponentDescription">
-    <ant inheritAll="false" useNativeBasedir="true" dir="${appinventor.dir}/components"
-         target="XmlComponentDescription"/>
-  </target>
-
 </project>

appinventor/components/build.xml

@@ -14,7 +14,7 @@
 
   <target name="all"
           depends="CommonConstants,AndroidRuntime,
-                   JsonComponentDescription,XmlComponentDescription,
+                   JsonComponentDescription,
                    ComponentList,ComponentTranslation,Barcode">
   </target>
 
@@ -405,22 +405,6 @@
           todir="${public.build.dir}"/>
   </target>
 
-    <!-- =====================================================================
-         XmlComponentDescription: create lang_def.xml for Blocks Editor.
-         ===================================================================== -->
-    <target name="XmlComponentDescription"
-            description="Make ya_lang_def.xml file for Blocks Editor."
-            depends="AnnotationProcessors,AndroidRuntime,HtmlEntities,CommonConstants">
-      <property name="XmlComponentDescription-class.dir"
-                location="${class.dir}/XmlComponentDescription" />
-      <ai.apt apt-classdir="${XmlComponentDescription-class.dir}"
-              apt-processor="com.google.appinventor.components.scripts.LangDefXmlGenerator"
-              apt-target="${XmlComponentDescription-class.dir}/ya_lang_def.xml"/>
-
-      <copy file="${XmlComponentDescription-class.dir}/ya_lang_def.xml"
-            todir="${public.build.dir}"/>
-    </target>
-
     <!-- =====================================================================
          ComponentList: create simple_components.txt and
                         simple_components_build_info.json

appinventor/components/src/com/google/appinventor/components/annotations/DesignerComponent.java

@@ -36,8 +36,7 @@ public @interface DesignerComponent {
    * Description to be shown on user request in the Designer.  If this field is
    * empty, the description() field should be used.  This may contain HTML.
    * Internal double-quotes will be converted to single-quotes when this field
-   * is displayed in the designer.  For now, this cannot contain an
-   * ampersand (%), which would corrupt ya_lang_def.xml.
+   * is displayed in the designer.
    */
   // TODO(user): Add more robust character escaping.
   String designerHelpDescription() default "";

appinventor/components/src/com/google/appinventor/components/runtime/Form.java

@@ -847,9 +847,9 @@ public class Form extends AppInventorCompatActivity
    * Compiler-generated method to initialize and add application components to
    * the form.  We just provide an implementation here to artificially make
    * this class concrete so that it is included in the documentation and
-   * Codeblocks language definition file generated by
+   * App Inventor component definition file generated by
    * {@link com.google.appinventor.components.scripts.DocumentationGenerator} and
-   * {@link com.google.appinventor.components.scripts.LangDefXmlGenerator},
+   * {@link com.google.appinventor.components.scripts.ComponentDescriptorGenerator},
    * respectively.  The actual implementation appears in {@code runtime.scm}.
    */
   protected void $define() {    // This must be declared protected because we are called from Screen1 which subclasses
@@ -875,9 +875,9 @@ public class Form extends AppInventorCompatActivity
   /**
    * A trivial implementation to artificially make this class concrete so
    * that it is included in the documentation and
-   * Codeblocks language definition file generated by
+   * App Inventor component definition file generated by
    * {@link com.google.appinventor.components.scripts.DocumentationGenerator} and
-   * {@link com.google.appinventor.components.scripts.LangDefXmlGenerator},
+   * {@link com.google.appinventor.components.scripts.ComponentDescriptorGenerator},
    * respectively.  The actual implementation appears in {@code runtime.scm}.
    */
   @Override