fix build breaks (#81)

- device_gemm_xdl_c_shuffle function signature matches split-k
- retire host_driver since it is no longer maintained
- linter error (unused variable)
Co-authored-by: Chao Liu <chao.liu2@amd.com>

device_operation/include/device_gemm_xdl.hpp

@@ -409,7 +409,7 @@ struct DeviceGemmXdl
                                                       AElementwiseOperation a_element_op,
                                                       BElementwiseOperation b_element_op,
                                                       CElementwiseOperation c_element_op,
-                                                      ck::index_t) override
+                                                      index_t /* KBatch */ = 1) override
     {
         return std::make_unique<Argument>(static_cast<const ADataType*>(p_a),
                                           static_cast<const BDataType*>(p_b),

device_operation/include/device_gemm_xdl_c_shuffle.hpp

@@ -425,7 +425,7 @@ struct DeviceGemmXdl_C_Shuffle
                                                       AElementwiseOperation a_element_op,
                                                       BElementwiseOperation b_element_op,
                                                       CElementwiseOperation c_element_op,
-                                                      ck::index_t KBatch = 1) override
+                                                      index_t /* KBatch */ = 1) override
     {
         return std::make_unique<Argument>(static_cast<const ADataType*>(p_a),
                                           static_cast<const BDataType*>(p_b),

device_operation/include/device_gemm_xdl_c_shuffle_bias_activation.hpp

@@ -465,7 +465,7 @@ struct DeviceGemmXdl_C_Shuffle_Bias_Activation
                                                       AElementwiseOperation a_element_op,
                                                       BElementwiseOperation b_element_op,
                                                       CElementwiseOperation c_element_op,
-                                                      index_t KBatch = 1) override
+                                                      index_t /* KBatch */ = 1) override
     {
         return std::make_unique<Argument>(static_cast<const ADataType*>(p_a),
                                           static_cast<const BDataType*>(p_b),

device_operation/include/device_gemm_xdl_c_shuffle_bias_activation_add.hpp

@@ -523,7 +523,7 @@ struct DeviceGemmXdl_C_Shuffle_Bias_Activation_Add
                                                       AElementwiseOperation a_element_op,
                                                       BElementwiseOperation b_element_op,
                                                       CElementwiseOperation c_element_op,
-                                                      index_t KBatch = 1) override
+                                                      index_t /* KBatch */ = 1) override
     {
         return std::make_unique<Argument>(static_cast<const ADataType*>(p_a),
                                           static_cast<const BDataType*>(p_b),

host/CMakeLists.txt

 add_subdirectory(host_tensor)
-add_subdirectory(driver_offline)
+# add_subdirectory(driver_offline) # deprecated