[WebAssembly] Delete static_assert(sizeof(SymbolUnion) <= 96) to fix Windows builds

http://lab.llvm.org:8011/builders/sanitizer-windows/builds/47944/steps/stage%201%20build/logs/stdio

Needs to figure out later the size on Windows.

llvm-svn: 365171

lld/wasm/Symbols.h

@@ -475,11 +475,6 @@ union SymbolUnion {
   alignas(SectionSymbol) char I[sizeof(SectionSymbol)];
 };
 
-// It is important to keep the size of SymbolUnion small for performance and
-// memory usage reasons. 96 bytes is a soft limit based on the size of
-// UndefinedFunction on a 64-bit system.
-static_assert(sizeof(SymbolUnion) <= 96, "SymbolUnion too large");
-
 void printTraceSymbol(Symbol *Sym);
 void printTraceSymbolUndefined(StringRef Name, const InputFile* File);