Remove duplicated find_package calls (#563)

Author: aobolensk

cmake/mpi.cmake

@@ -4,7 +4,6 @@ if(NOT MPI_FOUND)
 endif()
 
 function(ppc_link_mpi exec_func_lib)
-  find_package(MPI REQUIRED)
   if(MPI_COMPILE_FLAGS)
     set_target_properties(${exec_func_lib} PROPERTIES COMPILE_FLAGS
                                                       "${MPI_COMPILE_FLAGS}")

cmake/openmp.cmake

@@ -14,16 +14,6 @@ if(MSVC AND NOT (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
       CACHE STRING "OpenMP CXX specification date" FORCE)
 endif()
 
-find_package(OpenMP)
-if(OpenMP_FOUND)
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
-  set(CMAKE_EXE_LINKER_FLAGS
-      "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
-else(OpenMP_FOUND)
-  message(FATAL_ERROR "OpenMP NOT FOUND")
-endif(OpenMP_FOUND)
-
 function(ppc_link_threads exec_func_lib)
   target_link_libraries(${exec_func_lib} PUBLIC Threads::Threads)
 endfunction()