Remove a failing static_assert.

This static_assert is legitimate, but it is failing on some build environments.
I'm removing it until it's fixed to unbreak the bots.

llvm-svn: 325181

lld/wasm/Symbols.h

@@ -237,8 +237,6 @@ union SymbolUnion {
 
 template <typename T, typename... ArgT>
 T *replaceSymbol(Symbol *S, ArgT &&... Arg) {
-  static_assert(std::is_trivially_destructible<T>(),
-                "Symbol types must be trivially destructible");
   static_assert(sizeof(T) <= sizeof(SymbolUnion), "Symbol too small");
   static_assert(alignof(T) <= alignof(SymbolUnion),
                 "SymbolUnion not aligned enough");