refactor: add exclude target to remove x86 nhwc kernel register (#115)

lite/core/mir/type_layout_cast_pass.cc

@@ -249,11 +249,13 @@ void OpenCLTypeLayoutTransformPass::Apply(
 REGISTER_MIR_PASS(type_layout_cast_pass,
                   paddle::lite::mir::TypeLayoutTransformPass)
     .BindTargets({TARGET(kAny)})
+    .ExcludeTargets({TARGET(kMLU)})
     .BindKernel("layout_once")
     .BindKernel("layout");
 
 REGISTER_MIR_PASS(type_layout_cast_preprocess_pass,
                   paddle::lite::mir::OpenCLTypeLayoutTransformPass)
     .BindTargets({TARGET(kAny)})
+    .ExcludeTargets({TARGET(kMLU)})
     .BindKernel("layout_once")
     .BindKernel("layout");

lite/core/op_registry.cc

@@ -184,9 +184,6 @@ KernelRegistry::KernelRegistry()
   INIT_FOR(kX86, kFloat, kNCHW);
   INIT_FOR(kX86, kFP16, kNCHW);
   INIT_FOR(kX86, kInt8, kNCHW);
-  INIT_FOR(kX86, kFloat, kNHWC);
-  INIT_FOR(kX86, kFP16, kNHWC);
-  INIT_FOR(kX86, kInt8, kNHWC);
   INIT_FOR(kX86, kAny, kNCHW);
   INIT_FOR(kX86, kAny, kAny);
   INIT_FOR(kX86, kInt64, kNCHW);

lite/core/op_registry.h

@@ -126,15 +126,6 @@ class KernelRegistry final {
               KernelRegistryForTarget<TARGET(kX86),
                                       PRECISION(kInt8),
                                       DATALAYOUT(kNCHW)> *,  //
-              KernelRegistryForTarget<TARGET(kX86),
-                                      PRECISION(kFloat),
-                                      DATALAYOUT(kNHWC)> *,  //
-              KernelRegistryForTarget<TARGET(kX86),
-                                      PRECISION(kFP16),
-                                      DATALAYOUT(kNHWC)> *,  //
-              KernelRegistryForTarget<TARGET(kX86),
-                                      PRECISION(kInt8),
-                                      DATALAYOUT(kNHWC)> *,  //
               KernelRegistryForTarget<TARGET(kHost),
                                       PRECISION(kFloat),
                                       DATALAYOUT(kNCHW)> *,  //