Simplify Flang atomic tests - remove target requirements

Author: Krish Gupta

flang/test/Lower/OpenMP/atomic-read-complex.f90

@@ -1,10 +1,7 @@
 ! Test lowering of atomic read to LLVM IR for complex types.
 ! This is a regression test for issue #165184.
 
-! REQUIRES: x86-registered-target || aarch64-registered-target
-
-! RUN: %flang_fc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fopenmp %s -o - | FileCheck %s
-! RUN: %flang_fc1 -triple aarch64-unknown-linux-gnu -emit-llvm -fopenmp %s -o - | FileCheck %s
+! RUN: %flang_fc1 -emit-llvm -fopenmp -o - %s | FileCheck %s
 
 ! Test that atomic read operations with complex types emit the correct
 ! size parameter to __atomic_load:

flang/test/Lower/OpenMP/atomic-write-complex.f90

@@ -1,10 +1,7 @@
 ! Test lowering of atomic write to LLVM IR for complex types.
 ! This is a regression test for issue #165184.
 
-! REQUIRES: x86-registered-target || aarch64-registered-target
-
-! RUN: %flang_fc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fopenmp %s -o - | FileCheck %s
-! RUN: %flang_fc1 -triple aarch64-unknown-linux-gnu -emit-llvm -fopenmp %s -o - | FileCheck %s
+! RUN: %flang_fc1 -emit-llvm -fopenmp -o - %s | FileCheck %s
 
 ! Test that atomic write operations with complex types emit the correct
 ! size parameter to __atomic_store: