[FEA] Remove bridge infrastructure and device_memory_resource

[bdice]

Remove bridge infrastructure and device_memory_resource

Part of #2011. Depends on removal of device_memory_resource inheritance (#2295).

Problem

After #2295, no resource inherits from device_memory_resource, but the class
and its bridge infrastructure still exist:

1. device_memory_resource (cpp/include/rmm/mr/device_memory_resource.hpp)
2. device_memory_resource_view (cpp/include/rmm/mr/detail/device_memory_resource_view.hpp)
3. Pointer-based per_device_resource APIs and bridge helpers
4. cccl_adaptors.hpp wrapper is simplified but retained (deleted in [FEA] Delete cccl_adaptors.hpp and use raw CCCL resource_ref types #2323)

With no resource inheriting from device_memory_resource, these components are
dead code and can be deleted.

Goal

After this work:

• device_memory_resource.hpp is deleted
• device_memory_resource_view.hpp is deleted
• Pointer-based per_device_resource APIs are removed
• to_device_async_resource_ref_checked and similar bridge helpers are removed
• cccl_adaptors.hpp is simplified (most bridge code removed, but file retained
  for deletion in [FEA] Delete cccl_adaptors.hpp and use raw CCCL resource_ref types #2323)
• Test mock resources (mock_resource.hpp, device_check_resource_adaptor.hpp)
  use CCCL concepts directly

Branch

delete-device-memory-resource (based on remove-dmr-inheritance)

5 commits (#2295's 4 + 1):

• Commits from [FEA] Remove device_memory_resource inheritance from all C++ memory resources #2295 (see that issue)
• f8c76212 Remove device_memory_resource and DMR bridge infrastructure (25 files, deleting device_memory_resource.hpp and device_memory_resource_view.hpp)

Tasks

1. Delete device_memory_resource_view

File: cpp/include/rmm/mr/detail/device_memory_resource_view.hpp

• Delete the file
• Remove all #include directives referencing it

2. Delete device_memory_resource.hpp

File: cpp/include/rmm/mr/device_memory_resource.hpp

• Delete the file
• Remove all #include directives across the codebase

3. Simplify cccl_adaptors.hpp

File: cpp/include/rmm/detail/cccl_adaptors.hpp

• Remove bridge code that depends on device_memory_resource
• Retain core cccl_resource_ref / cccl_async_resource_ref wrappers
  (full deletion in [FEA] Delete cccl_adaptors.hpp and use raw CCCL resource_ref types #2323)

4. Remove pointer-based per_device_resource APIs and bridge helpers

File: cpp/include/rmm/mr/per_device_resource.hpp

• Remove get_per_device_resource() returning device_memory_resource*
• Remove set_per_device_resource() accepting device_memory_resource*
• Remove get_current_device_resource() returning device_memory_resource*
• Remove set_current_device_resource() accepting device_memory_resource*
• Remove to_device_async_resource_ref_checked and similar helpers

5. Update test infrastructure

• Rewrite mock_resource.hpp to satisfy CCCL concepts directly
• Rewrite device_check_resource_adaptor.hpp for CCCL concepts
• Update callback_memory_resource tests
• Update aligned, arena, failure_callback test files
• Update stream_ordered_memory_resource to remove DMR dependencies

Validation

• build-rmm-cpp -j0 succeeds (with -DBUILD_BENCHMARKS=ON)
• All 103 C++ tests pass (test-rmm-cpp)
• build-rmm-python -j0 succeeds
• All 1781 Python tests pass (test-rmm-python)

References

• Depends on [FEA] Remove device_memory_resource inheritance from all C++ memory resources #2295 (remove DMR inheritance)
• Followed by [FEA] Delete cccl_adaptors.hpp and use raw CCCL resource_ref types #2323 (delete cccl_adaptors.hpp and use raw CCCL types)
• [FEA] Support memory resources from CCCL 3.2 #2011 (parent tracking issue)