remove a couple of asserts that use RTTI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94068 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/MachineModuleInfo.h

@@ -176,9 +176,6 @@ public:
   Ty &getObjFileInfo() {
     if (ObjFileMMI == 0)
       ObjFileMMI = new Ty(*this);
-    
-    assert((void*)dynamic_cast<Ty*>(ObjFileMMI) == (void*)ObjFileMMI &&
-           "Invalid concrete type or multiple inheritence for getInfo");
     return *static_cast<Ty*>(ObjFileMMI);
   }