Remove SketchCodeDocument

This class served no purpose anymore, so it can be removed. The
`SketchCode.getMetadata()` and `setMetaData()` methods only served to
keep track of a SketchCodeDocument instance (and were no longer used),
so these are removed too, just like some SketchCode constructors dealing
with this metadata object.

Author: matthijskooijman

app/src/processing/app/Sketch.java

@@ -90,11 +90,6 @@ private void load() throws IOException {
   protected void load(boolean forceUpdate) throws IOException {
     data.load();
 
-    for (SketchCode code : data.getCodes()) {
-      if (code.getMetadata() == null)
-        code.setMetadata(new SketchCodeDocument(this, code));
-    }
-
     // set the main file to be the current tab
     if (editor != null) {
       int current = editor.getCurrentTabIndex();
@@ -401,7 +396,7 @@ protected void nameCode(String newName) {
         return;
       }
       ensureExistence();
-      SketchCode code = (new SketchCodeDocument(this, newFile)).getCode();
+      SketchCode code = new SketchCode(newFile);
       try {
         editor.addTab(code, "");
       } catch (IOException e) {
@@ -861,7 +856,7 @@ public boolean addFile(File sourceFile) {
     }
 
     if (codeExtension != null) {
-      SketchCode newCode = (new SketchCodeDocument(this, destFile)).getCode();
+      SketchCode newCode = new SketchCode(destFile);
 
       if (replacement) {
         data.replaceCode(newCode);

app/src/processing/app/SketchCodeDocument.java

@@ -45,8 +45,6 @@ public class SketchCode {
    */
   private File file;
 
-  private Object metadata;
-
   /**
    * Interface for an in-memory storage of text file contents. This is
    * intended to allow a GUI to keep modified text in memory, and allow
@@ -74,16 +72,7 @@ public static interface TextStorage {
   private TextStorage storage;
 
   public SketchCode(File file) {
-    init(file, null);
-  }
-
-  public SketchCode(File file, Object metadata) {
-    init(file, metadata);
-  }
-
-  private void init(File file, Object metadata) {
     this.file = file;
-    this.metadata = metadata;
   }
 
   /**
@@ -244,14 +233,4 @@ public void saveAs(File newFile) throws IOException {
 
     BaseNoGui.saveFile(storage.getText(), newFile);
   }
-
-
-  public Object getMetadata() {
-    return metadata;
-  }
-
-
-  public void setMetadata(Object metadata) {
-    this.metadata = metadata;
-  }
 }