[NFC][SYCL] Do not add sycl_device attribute to OpenCL kernel (#1439)

Adding implicit sycl_device attribute is not required anymore due to refactoring in previous patches (2225ffd),
We used to add implicit sycl_device attribute to outline device code, now device code outlining is performed by the CodeGen without using of this attribute.

Signed-off-by: Mariya Podchishchaeva <[email protected]>

Author: Fznamznon

clang/lib/Sema/SemaSYCL.cpp

@@ -1220,7 +1220,6 @@ CreateOpenCLKernelDeclaration(ASTContext &Context, StringRef Name,
   }
   OpenCLKernel->setParams(Params);
 
-  OpenCLKernel->addAttr(SYCLDeviceAttr::CreateImplicit(Context));
   OpenCLKernel->addAttr(OpenCLKernelAttr::CreateImplicit(Context));
   OpenCLKernel->addAttr(AsmLabelAttr::CreateImplicit(Context, Name));
   OpenCLKernel->addAttr(ArtificialAttr::CreateImplicit(Context));

clang/test/SemaSYCL/basic-kernel-wrapper.cpp

@@ -72,7 +72,6 @@ int main() {
 
 // Check kernel wrapper attributes
 
-// CHECK: SYCLDeviceAttr {{.*}} Implicit
 // CHECK: OpenCLKernelAttr {{.*}} Implicit
 // CHECK: AsmLabelAttr {{.*}} Implicit "{{.*}}kernel_wrapper{{.*}}"
 // CHECK: ArtificialAttr {{.*}} Implicit