Remove two deprecated methods from base::Version

base/version.h

Index: base/version.h
diff --git a/base/version.h b/base/version.h
index b6029d3c758a14ffb04fa8117830c0faa165611e..fc5792383d4457870e9cab609b98f744cb131941 100644
--- a/base/version.h
+++ b/base/version.h
@@ -36,15 +36,6 @@ class BASE_EXPORT Version {
   // than the version of this object.
   bool IsOlderThan(const std::string& version_str) const;
 
-  // Returns NULL if the string is not in the proper format.
-  // Caller is responsible for freeing the Version object once done.
-  // DO NOT USE FOR NEWER CODE.
-  static Version* GetVersionFromString(const std::string& version_str);
-
-  // Creates a copy of this version object. Caller takes ownership.
-  // DO NOT USE FOR NEWER CODE.
-  Version* Clone() const;
-
   bool Equals(const Version& other) const;
 
   // Returns -1, 0, 1 for <, ==, >.