Revert "ART: Key-Value Store in Oat header"

Broke arm64 build.

This reverts commit c87d27b25994da8670d82a8f7bad6327b693bfff.

Change-Id: I4c2ade295d2b5aa77fc3ad810e0e859629a5bf09
diff --git a/oatdump/oatdump.cc b/oatdump/oatdump.cc
index 631d538..12970fc 100644
--- a/oatdump/oatdump.cc
+++ b/oatdump/oatdump.cc
@@ -171,18 +171,10 @@
     os << "IMAGE FILE LOCATION OAT BEGIN:\n";
     os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin());
 
-    // Print the key-value store.
-    {
-      os << "KEY VALUE STORE:\n";
-      size_t index = 0;
-      const char* key;
-      const char* value;
-      while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) {
-        os << key << " = " << value << "\n";
-        index++;
-      }
-      os << "\n";
-    }
+    os << "IMAGE FILE LOCATION:\n";
+    const std::string image_file_location(oat_header.GetImageFileLocation());
+    os << image_file_location;
+    os << "\n\n";
 
     os << "BEGIN:\n";
     os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n";