Remove sycl namespace alias (AMReX-Codes#2971)

WeiqunZhang · web-flow · commit 1bc4e4eb5a25 · 2022-10-03T16:50:45.000-07:00
This causes a conflict with new compilers.
diff --git a/Src/Base/AMReX_GpuTypes.H b/Src/Base/AMReX_GpuTypes.H
@@ -8,7 +8,6 @@
 
 #ifdef AMREX_USE_DPCPP
 #include <CL/sycl.hpp>
-namespace sycl = cl::sycl;
 #endif
 
 namespace amrex {
diff --git a/Src/Base/AMReX_Math.H b/Src/Base/AMReX_Math.H
@@ -9,7 +9,6 @@
 
 #ifdef AMREX_USE_DPCPP
 #include <CL/sycl.hpp>
-namespace sycl = cl::sycl;
 #endif
 
 namespace amrex { inline namespace disabled {
diff --git a/Src/Base/AMReX_RandomEngine.H b/Src/Base/AMReX_RandomEngine.H
@@ -15,7 +15,6 @@
 #include <curand_kernel.h>
 #elif defined(AMREX_USE_DPCPP)
 #include <CL/sycl.hpp>
-namespace sycl = cl::sycl;
 #include <oneapi/mkl/rng/device.hpp>
 namespace mkl = oneapi::mkl;
 #endif
