uri: remove componentwise ostream operator

componentwise output was a surprising behaviour for what is sometimes a
string-like object. users can elect to write the entire string via all()
or the components manually as required.

uri.cpp.rl

@@ -215,11 +215,3 @@ util::operator<< (std::ostream &os, util::uri::component c)
 
     unreachable ();
 }
-
-
-//-----------------------------------------------------------------------------
-std::ostream&
-util::operator<< (std::ostream &os, const util::uri &val)
-{
-    return os << '[' << util::make_infix (val.components ()) << ']';
-}

uri.hpp

@@ -94,7 +94,6 @@ namespace util {
         std::string m_value;
     };
 
-    std::ostream& operator<< (std::ostream&, const uri&);
     std::ostream& operator<< (std::ostream&, uri::component);
 }