Do some cleanup that is now supported by scikit-build-core

conda/recipes/rmm/meta.yaml

@@ -36,8 +36,6 @@ build:
 
 requirements:
   build:
-    # TODO: See discussion in https://github.com/conda-forge/scikit-build-feedstock/issues/69,
-    # should cmake/ninja be in this section or in host?
     - cmake >=3.23.1,!=3.25.0
     - ninja
     - {{ compiler('c') }}

python/CMakeLists.txt

@@ -25,12 +25,7 @@ include(${CMAKE_BINARY_DIR}/RAPIDS.cmake)
 project(
   rmm-python
   VERSION ${rmm_version}
-  # TODO: See if we can remove the C language when switching to scikit-build-core.
-  LANGUAGES # TODO: Building Python extension modules via the python_extension_module requires the C
-            # language to be enabled here. The test project that is built in scikit-build to verify
-            # various linking options for the python library is hardcoded to build with C, so until
-            # that is fixed we need to keep C.
-            C CXX)
+  LANGUAGES CXX)
 
 option(FIND_RMM_CPP "Search for existing RMM C++ installations before defaulting to local files"
        OFF)