[OpenMP] Ensure testing for versions 4.5 and default - Part 3

This third patch in the series removes version 5.0 string from
test cases making them check for default version. It also add test
cases for version 4.5.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D85214
diff --git a/clang/test/OpenMP/distribute_simd_lastprivate_messages.cpp b/clang/test/OpenMP/distribute_simd_lastprivate_messages.cpp
index 8929b88..8e47189 100644
--- a/clang/test/OpenMP/distribute_simd_lastprivate_messages.cpp
+++ b/clang/test/OpenMP/distribute_simd_lastprivate_messages.cpp
@@ -1,8 +1,8 @@
 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-version=45  -fopenmp %s -Wuninitialized
-// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-version=50 -fopenmp %s -Wuninitialized
+// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp %s -Wuninitialized
 
 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-version=45 -fopenmp-simd %s -Wuninitialized
-// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-version=50 -fopenmp-simd %s -Wuninitialized
+// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd %s -Wuninitialized
 
 extern int omp_default_mem_alloc;
 void foo() {