Remove unnecessary intrinsic declarations in the test.

Author: ritter-x2a

llvm/test/CodeGen/AMDGPU/ptradd-sdag-optimizations.ll

@@ -198,10 +198,5 @@ define amdgpu_kernel void @llvm_amdgcn_queue_ptr(ptr addrspace(1) %ptr)  #0 {
   ret void
 }
 
-declare noalias ptr addrspace(4) @llvm.amdgcn.queue.ptr()
-declare noalias ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
-declare i64 @llvm.amdgcn.dispatch.id()
-declare noalias ptr addrspace(4) @llvm.amdgcn.dispatch.ptr()
-
 ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
 ; GFX942: {{.*}}