[CMake] Remove FindRoc* files (oneapi-src#490)

* Some files are deleted.
* These files were not needed, but added potential for issues.
  * Eg. if HIP_PATH was not set, the shared library associated with the target would not be found.

src/blas/backends/rocblas/CMakeLists.txt

@@ -21,7 +21,10 @@
 
 set(LIB_NAME onemkl_blas_rocblas)
 set(LIB_OBJ ${LIB_NAME}_obj)
-find_package(rocBLAS REQUIRED)
+find_package(hip REQUIRED)
+find_package(rocblas REQUIRED)
+find_package(Threads REQUIRED)
+
 set(SOURCES rocblas_level1.cpp 
  rocblas_level2.cpp 
  rocblas_level3.cpp 
@@ -55,7 +58,8 @@ else()
  target_link_options(ONEMKL::SYCL::SYCL INTERFACE)
 endif()
 
-target_link_libraries(${LIB_OBJ} PUBLIC ONEMKL::SYCL::SYCL ONEMKL::rocBLAS::rocBLAS)
+target_link_libraries(${LIB_OBJ} PRIVATE roc::rocblas hip::host Threads::Threads)
+target_link_libraries(${LIB_OBJ} PUBLIC ONEMKL::SYCL::SYCL)
 target_compile_features(${LIB_OBJ} PUBLIC cxx_std_17)
 set_target_properties(${LIB_OBJ} PROPERTIES
  POSITION_INDEPENDENT_CODE ON)

src/lapack/backends/rocsolver/CMakeLists.txt

@@ -21,7 +21,10 @@
 
 set(LIB_NAME onemkl_lapack_rocsolver)
 set(LIB_OBJ ${LIB_NAME}_obj)
-find_package(rocSOLVER REQUIRED)
+find_package(hip REQUIRED)
+find_package(rocsolver REQUIRED)
+find_package(Threads REQUIRED)
+
 set(SOURCES rocsolver_lapack.cpp
  rocsolver_batch.cpp
  $<$<STREQUAL:${ONEMKL_SYCL_IMPLEMENTATION},dpc++>:rocsolver_scope_handle.cpp>
@@ -38,7 +41,8 @@ target_include_directories(${LIB_OBJ}
  ${ONEMKL_GENERATED_INCLUDE_PATH}
 )
 target_compile_options(${LIB_OBJ} PRIVATE ${ONEMKL_BUILD_COPT})
-target_link_libraries(${LIB_OBJ} PUBLIC ONEMKL::SYCL::SYCL ONEMKL::rocSOLVER::rocSOLVER)
+target_link_libraries(${LIB_OBJ} PRIVATE roc::rocsolver hip::host Threads::Threads)
+target_link_libraries(${LIB_OBJ} PUBLIC ONEMKL::SYCL::SYCL)
 target_compile_features(${LIB_OBJ} PUBLIC cxx_std_17)
 set_target_properties(${LIB_OBJ} PROPERTIES
  POSITION_INDEPENDENT_CODE ON)

src/rng/backends/rocrand/CMakeLists.txt

@@ -54,7 +54,9 @@
 
 set(LIB_NAME onemkl_rng_rocrand)
 set(LIB_OBJ ${LIB_NAME}_obj)
-find_package(rocRAND REQUIRED)
+find_package(hip REQUIRED)
+find_package(rocrand REQUIRED)
+find_package(Threads REQUIRED)
 
 set(SOURCES philox4x32x10.cpp mrg32k3a.cpp $<$<BOOL:${BUILD_SHARED_LIBS}>:
  mkl_rng_rocrand_wrappers.cpp>)
@@ -67,8 +69,8 @@ target_include_directories(
  ${LIB_OBJ} PRIVATE ${PROJECT_SOURCE_DIR}/include ${PROJECT_SOURCE_DIR}/src
  ${CMAKE_BINARY_DIR}/bin ${MKL_INCLUDE} ${ONEMKL_GENERATED_INCLUDE_PATH})
 
-target_link_libraries(${LIB_OBJ} PUBLIC ONEMKL::SYCL::SYCL
- ONEMKL::rocRAND::rocRAND)
+target_link_libraries(${LIB_OBJ} PRIVATE roc::rocrand hip::host Threads::Threads)
+target_link_libraries(${LIB_OBJ} PUBLIC ONEMKL::SYCL::SYCL)
 target_compile_features(${LIB_OBJ} PUBLIC cxx_std_11)
 set_target_properties(${LIB_OBJ} PROPERTIES POSITION_INDEPENDENT_CODE ON)