disable UMF CUDA provider

This was an accidental change that made UR needlessly fetch cuda
headers. The CUDA provider is still WIP and isn't used anywhere
but in UMF tests.

Author: pbalcer

source/common/CMakeLists.txt

@@ -53,6 +53,7 @@ set(UMF_BUILD_TESTS OFF CACHE INTERNAL "Build UMF tests")
 set(UMF_BUILD_EXAMPLES OFF CACHE INTERNAL "Build UMF examples")
 set(UMF_BUILD_SHARED_LIBRARY ${UMF_BUILD_SHARED_LIBRARY} CACHE INTERNAL "Build UMF shared library")
 set(UMF_BUILD_LIBUMF_POOL_DISJOINT ON CACHE INTERNAL "Build Disjoint Pool")
+set(UMF_BUILD_CUDA_PROVIDER OFF CACHE INTERNAL "Build UMF CUDA provider")
 
 FetchContent_MakeAvailable(unified-memory-framework)
 FetchContent_GetProperties(unified-memory-framework)