Linker flag /LARGEADDRESSAWARE is not required with LLVM 3.3.

With a recent commit support for the missing relocations was added.
This change removes the flag from the linker command line.

driver/linker.cpp

@@ -237,8 +237,10 @@ static int linkObjToBinaryWin(bool sharedLib)
     // use address space layout randomization (ASLR) feature
     args.push_back("/DYNAMICBASE");
 
+#if LDC_LLVM_VER <= 302
     // because of a LLVM bug
     args.push_back("/LARGEADDRESSAWARE:NO");
+#endif
 
     // output debug information
     if (global.params.symdebug)