remove GTEST_HAS_PARAM_TESTS

As mentioned in issue #360:
"Now that all the platforms gtest supports work with value-parameterized
tests, we should remove the uses of the GTEST_HAS_PARAM_TESTS macro from
the codebase everywhere."
https://github.com/google/googletest/issues/360

googletest/test/gtest-param-test2_test.cc

@@ -36,8 +36,6 @@
 
 #include "test/gtest-param-test_test.h"
 
-#if GTEST_HAS_PARAM_TEST
-
 using ::testing::Values;
 using ::testing::internal::ParamGenerator;
 
@@ -61,5 +59,3 @@ INSTANTIATE_TEST_CASE_P(MultiplesOf33,
 INSTANTIATE_TEST_CASE_P(Sequence2,
                         InstantiationInMultipleTranslaionUnitsTest,
                         Values(42*3, 42*4, 42*5));
-
-#endif  // GTEST_HAS_PARAM_TEST