[Decouple phi] Decouple custom_op in fluid and phi (#49866)

* decouple phi custom_op

* decouple phi custom_op, remove codes

* delete custom symbol of inference

paddle/fluid/inference/paddle_inference.map

@@ -39,9 +39,6 @@
 			*paddle::GPUContextResource*;
 			*paddle::CPUContextResource*;
 
-			*paddle::LoadCustomOperatorLib*;
-			*paddle::RegisterAllCustomOperator*;
-
 			/* ut needs the following symbol, we need to modify all the ut to hidden such symbols */
 
 			/* Another question: the ut size will grow from 50M to 80M, why? */

paddle/fluid/inference/paddle_inference_custom_device.map

@@ -39,9 +39,6 @@
 			*paddle::GPUContextResource*;
 			*paddle::CPUContextResource*;
 
-			*paddle::LoadCustomOperatorLib*;
-			*paddle::RegisterAllCustomOperator*;
-
 			/* ut needs the following symbol, we need to modify all the ut to hidden such symbols */
 
 			/* Another question: the ut size will grow from 50M to 80M, why? */

paddle/phi/api/ext/op_meta_info.h

@@ -619,16 +619,6 @@ class PADDLE_API OpMetaInfoBuilder {
   size_t index_;
 };
 
-/////////////////////// Op register API /////////////////////////
-
-// For inference: compile directly with framework
-// Call after PD_BUILD_OP(...)
-void RegisterAllCustomOperator();
-
-// Using this api to load compiled custom operator's dynamic library and
-// register Custom Operator into it
-void LoadCustomOperatorLib(const std::string& dso_name);
-
 /////////////////////// Op register Macro /////////////////////////
 
 #define PD_BUILD_OP(op_name)                                                   \

paddle/phi/api/lib/op_meta_info.cc

@@ -19,7 +19,6 @@ limitations under the License. */
 #include <vector>
 
 #include "glog/logging.h"
-#include "paddle/fluid/framework/custom_operator.h"
 #include "paddle/phi/core/dense_tensor.h"
 #include "paddle/phi/core/enforce.h"
 
@@ -244,17 +243,6 @@ OpMetaInfoBuilder& OpMetaInfoBuilder::SetInferDtypeFn(InferDtypeFunc func) {
   info_ptr_->SetInferDtypeFn(std::forward<InferDtypeFunc>(func));
   return *this;
 }
-
-/////////////////////// Op register API /////////////////////////
-
-void RegisterAllCustomOperator() {
-  auto& op_meta_info_map = OpMetaInfoMap::Instance();
-  framework::RegisterOperatorWithMetaInfoMap(op_meta_info_map);
-}
-
-void LoadCustomOperatorLib(const std::string& dso_name) {
-  paddle::framework::LoadOpMetaInfoAndRegisterOp(dso_name);
-}
 }  // namespace paddle
 
 #ifdef __cplusplus