Fix a double-free error by removing a static object.

Author: gunney1

src/axom/core/execution/execution_space.hpp

@@ -127,30 +127,22 @@ namespace axom
 {
 
 /// \brief Return default allocator id for a runtime policy.
-static const std::map<axom::runtime_policy::Policy, int> s_policyToDefaultAllocatorID {
-  {axom::runtime_policy::Policy::seq,
-   axom::execution_space<axom::SEQ_EXEC>::allocatorID()}
+inline int policyToDefaultAllocatorID(axom::runtime_policy::Policy policy)
+{
+  return
 #if defined(AXOM_RUNTIME_POLICY_USE_OPENMP)
-  ,
-  {axom::runtime_policy::Policy::omp,
-   axom::execution_space<axom::OMP_EXEC>::allocatorID()}
+    policy == axom::runtime_policy::Policy::omp ?
+    axom::execution_space<axom::OMP_EXEC>::allocatorID() :
 #endif
 #if defined(AXOM_RUNTIME_POLICY_USE_CUDA)
-  ,
-  {axom::runtime_policy::Policy::cuda,
-   axom::execution_space<axom::CUDA_EXEC<256>>::allocatorID()}
+    policy == axom::runtime_policy::Policy::cuda ?
+    axom::execution_space<axom::CUDA_EXEC<256>>::allocatorID() :
 #endif
 #if defined(AXOM_RUNTIME_POLICY_USE_HIP)
-  ,
-  {axom::runtime_policy::Policy::hip,
-   axom::execution_space<axom::HIP_EXEC<256>>::allocatorID()}
+    policy == axom::runtime_policy::Policy::hip ?
+    axom::execution_space<axom::HIP_EXEC<256>>::allocatorID() :
 #endif
-};
-
-/// \brief Return default allocator id for a runtime policy.
-inline int policyToDefaultAllocatorID(axom::runtime_policy::Policy policy)
-{
-  return s_policyToDefaultAllocatorID.find(policy)->second;
+    axom::execution_space<axom::SEQ_EXEC>::allocatorID() ;
 }
 
 }  // namespace axom