bug-fix: Don't enable the CUDA language if testing was requested when…

… finding cudf (#16615)

This PR removes CMake code enabling the CUDA language if the testing component was requested.
Closes #16614

Authors:
  - Marcus D. Hanwell (https://github.com/cryos)

Approvers:
  - Robert Maynard (https://github.com/robertmaynard)
  - Vyas Ramasubramani (https://github.com/vyasr)

URL: #16615

cpp/CMakeLists.txt

@@ -1069,23 +1069,12 @@ if(CUDF_ENABLE_ARROW_PARQUET)
   )
 endif()
 
-string(
-  APPEND
-  install_code_string
-  [=[
-if(testing IN_LIST cudf_FIND_COMPONENTS)
-  enable_language(CUDA)
-endif()
-]=]
-)
-
 rapids_export(
   INSTALL cudf
   EXPORT_SET cudf-exports ${_components_export_string}
   GLOBAL_TARGETS cudf cudftestutil
   NAMESPACE cudf::
   DOCUMENTATION doc_string
-  FINAL_CODE_BLOCK install_code_string
 )
 
 # ##################################################################################################