Revert "Infer document and sample metadata when generating docs."

This reverts commit 3cdd961719e41b26b129abbeefa644f09a8e449c.

Change-Id: I991368d53b29cbd308de5ffcfe4f7899b277ca64
diff --git a/src/com/google/doclava/DocFile.java b/src/com/google/doclava/DocFile.java
index c777bd9..a00bac5 100644
--- a/src/com/google/doclava/DocFile.java
+++ b/src/com/google/doclava/DocFile.java
@@ -72,7 +72,7 @@
     }
     return outFrag;
   }
-
+  
   public static Data getPageMetadata (String docfile, Data hdf) {
     //utility method for extracting metadata without generating file output.
     if (hdf == null) {
@@ -230,9 +230,6 @@
       } else if (filename.indexOf("compatibility") == 0) {
         hdf.setValue("compatibility", "true");
       }
-      //set metadata for this file in jd_lists_unified
-      PageMetadata.setPageMetadata(docfile, relative, outfile, hdf, Doclava.sTaglist);
-
       if (fromTemplate.equals("sdk")) {
         ClearPage.write(hdf, "sdkpage.cs", outfile);
       } else {