[HLSL] Remove `__builtin_hlsl_create_handle` (#109910)

The `__builtin_hlsl_create_handle` called from the constructor of
resource buffer class was supposed to initialize the resource handle
based on resource type and registry binding information. It is not
possible to do though that because the registry binding information is
not accessible from the constructor during codegen.

Instead, the handle should be initialized to an empty or null handle
with something like `__builtin_hlsl_create_null_handle`. This PR is
removing `__builtin_hlsl_create_handle` first and the
`__builtin_hlsl_create_null_handle` will be added to the constructor
once the handle type changes to `__hlsl_resource_t` and
HLSLAttributeResourceType is updated to be a canonical type, which will
allow the initialization assignment.

The actual handle initialization based on the registry binding will be
implemented part 2/2 of llvm/llvm-project#105076 once the dependent
tasks are completed.

Part 1/2 of llvm/llvm-project#105076.

0 files changed, 0 insertions, 0 deletions