returning 'const uint16_t' doesn't make sense. removed const.

git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@993 e5f2f494-b856-4b98-b285-d166d9295462

src/lib/dns/cpp/rdata/generic/mx_15.cc

@@ -103,7 +103,7 @@ MX::getMXName() const
     return (mxname_);
 }
 
-const uint16_t
+uint16_t
 MX::getMXPref() const
 {
     return (preference_);

src/lib/dns/cpp/rdata/generic/mx_15.h

@@ -40,7 +40,7 @@ public:
     /// Specialized methods
     ///
     const Name& getMXName() const;
-    const uint16_t getMXPref() const;
+    uint16_t getMXPref() const;
 
 private:
     /// Note: this is a prototype version; we may reconsider