Restored the files accidentally grabbed from another branch

Author: eugeneepshteyn

flang/include/flang/Evaluate/integer.h

@@ -74,7 +74,6 @@ class Integer {
   static_assert(std::is_unsigned_v<BigPart>);
   static_assert(CHAR_BIT * sizeof(BigPart) >= 2 * partBits);
   static constexpr bool littleEndian{IS_LITTLE_ENDIAN};
-  static constexpr int alignment{ALIGNMENT};
 
 private:
   static constexpr int maxPartBits{CHAR_BIT * sizeof(Part)};

flang/include/flang/Evaluate/real.h

@@ -490,10 +490,7 @@ template <typename WORD, int PREC> class Real {
       bool isNegative, int exponent, const Fraction &, Rounding, RoundingBits,
       bool multiply = false);
 
-  // Require alignment, in case code generation on x86_64 decides that our
-  // Real object is suitable for SSE2 instructions and then gets surprised
-  // by unaligned address.
-  alignas(Word::alignment / 8) Word word_{}; // an Integer<>
+  Word word_{}; // an Integer<>
 };
 
 extern template class Real<Integer<16>, 11>; // IEEE half format