Remove SYCL distributed DFT option from MKL settings

Removed the option to disable SYCL distributed DFT in MKL settings.

Author: ZhouXY-PKU

CMakeLists.txt

@@ -463,7 +463,6 @@ endif()
 if(MKLROOT)
   set(MKL_INTERFACE lp64)
   set(ENABLE_SCALAPACK ON)
-  set(MKL_SYCL_DISTRIBUTED_DFT OFF CACHE BOOL "Disable SYCL distributed DFT")
   find_package(MKL REQUIRED)
   add_definitions(-D__MKL)
   include_directories(${MKL_INCLUDE} ${MKL_INCLUDE}/fftw)
@@ -804,4 +803,4 @@ install(PROGRAMS ${ABACUS_BIN_PATH}
 
 if(ENABLE_COVERAGE)
   coverage_evaluate()
-endif()
+endif()