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diff --git a/indra/llcommon/ll_template_cast.h b/indra/llcommon/ll_template_cast.h
deleted file mode 100644
index cff58ce00d..0000000000
--- a/indra/llcommon/ll_template_cast.h
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@@ -1,160 +0,0 @@
-/**
- * @file   ll_template_cast.h
- * @author Nat Goodspeed
- * @date   2009-11-21
- * @brief  Define ll_template_cast function
- * 
- * $LicenseInfo:firstyear=2009&license=viewergpl$
- * Copyright (c) 2009, Linden Research, Inc.
- * $/LicenseInfo$
- */
-
-#if ! defined(LL_LL_TEMPLATE_CAST_H)
-#define LL_LL_TEMPLATE_CAST_H
-
-/**
- * Implementation for ll_template_cast() (q.v.).
- *
- * Default implementation: trying to cast two completely unrelated types
- * returns 0. Typically you'd specify T and U as pointer types, but in fact T
- * can be any type that can be initialized with 0.
- */
-template <typename T, typename U>
-struct ll_template_cast_impl
-{
-    T operator()(U)
-    {
-        return 0;
-    }
-};
-
-/**
- * ll_template_cast<T>(some_value) is for use in a template function when
- * some_value might be of arbitrary type, but you want to recognize type T
- * specially.
- *
- * It's designed for use with pointer types. Example:
- * @code
- * struct SpecialClass
- * {
- *     void someMethod(const std::string&) const;
- * };
- *
- * template <class REALCLASS>
- * void somefunc(const REALCLASS& instance)
- * {
- *     const SpecialClass* ptr = ll_template_cast<const SpecialClass*>(&instance);
- *     if (ptr)
- *     {
- *         ptr->someMethod("Call method only available on SpecialClass");
- *     }
- * }
- * @endcode
- *
- * Why is this better than dynamic_cast<>? Because unless OtherClass is
- * polymorphic, the following won't even compile (gcc 4.0.1):
- * @code
- * OtherClass other;
- * SpecialClass* ptr = dynamic_cast<SpecialClass*>(&other);
- * @endcode
- * to say nothing of this:
- * @code
- * void function(int);
- * SpecialClass* ptr = dynamic_cast<SpecialClass*>(&function);
- * @endcode
- * ll_template_cast handles these kinds of cases by returning 0.
- */
-template <typename T, typename U>
-T ll_template_cast(U value)
-{
-    return ll_template_cast_impl<T, U>()(value);
-}
-
-/**
- * Implementation for ll_template_cast() (q.v.).
- *
- * Implementation for identical types: return same value.
- */
-template <typename T>
-struct ll_template_cast_impl<T, T>
-{
-    T operator()(T value)
-    {
-        return value;
-    }
-};
-
-/**
- * LL_TEMPLATE_CONVERTIBLE(dest, source) asserts that, for a value @c s of
- * type @c source, <tt>ll_template_cast<dest>(s)</tt> will return @c s --
- * presuming that @c source can be converted to @c dest by the normal rules of
- * C++.
- *
- * By default, <tt>ll_template_cast<dest>(s)</tt> will return 0 unless @c s's
- * type is literally identical to @c dest. (This is because of the
- * straightforward application of template specialization rules.) That can
- * lead to surprising results, e.g.:
- *
- * @code
- * Foo myFoo;
- * const Foo* fooptr = ll_template_cast<const Foo*>(&myFoo);
- * @endcode
- *
- * Here @c fooptr will be 0 because <tt>&myFoo</tt> is of type <tt>Foo*</tt>
- * -- @em not <tt>const Foo*</tt>. (Declaring <tt>const Foo myFoo;</tt> would
- * force the compiler to do the right thing.)
- *
- * More disappointingly:
- * @code
- * struct Base {};
- * struct Subclass: public Base {};
- * Subclass object;
- * Base* ptr = ll_template_cast<Base*>(&object);
- * @endcode
- *
- * Here @c ptr will be 0 because <tt>&object</tt> is of type
- * <tt>Subclass*</tt> rather than <tt>Base*</tt>. We @em want this cast to
- * succeed, but without our help ll_template_cast can't recognize it.
- *
- * The following would suffice:
- * @code
- * LL_TEMPLATE_CONVERTIBLE(Base*, Subclass*);
- * ...
- * Base* ptr = ll_template_cast<Base*>(&object);
- * @endcode
- *
- * However, as noted earlier, this is easily fooled:
- * @code
- * const Base* ptr = ll_template_cast<const Base*>(&object);
- * @endcode
- * would still produce 0 because we haven't yet seen:
- * @code
- * LL_TEMPLATE_CONVERTIBLE(const Base*, Subclass*);
- * @endcode
- *
- * @TODO
- * This macro should use Boost type_traits facilities for stripping and
- * re-adding @c const and @c volatile qualifiers so that invoking
- * LL_TEMPLATE_CONVERTIBLE(dest, source) will automatically generate all
- * permitted permutations. It's really not fair to the coder to require
- * separate:
- * @code
- * LL_TEMPLATE_CONVERTIBLE(Base*, Subclass*);
- * LL_TEMPLATE_CONVERTIBLE(const Base*, Subclass*);
- * LL_TEMPLATE_CONVERTIBLE(const Base*, const Subclass*);
- * @endcode
- *
- * (Naturally we omit <tt>LL_TEMPLATE_CONVERTIBLE(Base*, const Subclass*)</tt>
- * because that's not permitted by normal C++ assignment anyway.)
- */
-#define LL_TEMPLATE_CONVERTIBLE(DEST, SOURCE)   \
-template <>                                     \
-struct ll_template_cast_impl<DEST, SOURCE>      \
-{                                               \
-    DEST operator()(SOURCE wrapper)             \
-    {                                           \
-        return wrapper;                         \
-    }                                           \
-}
-
-#endif /* ! defined(LL_LL_TEMPLATE_CAST_H) */