revert MarkAgnosticPass code

ge/graph/preprocess/graph_preprocess.cc

@@ -92,7 +92,6 @@
 #include "graph/passes/unused_op_remove_pass.h"
 #include "graph/passes/var_is_initialized_op_pass.h"
 #include "graph/passes/variable_prepare_op_pass.h"
-#include "graph/passes/mark_agnostic_pass.h"
 #include "graph/preprocess/insert_op/util_insert_aipp_op.h"
 #include "graph/types.h"
 #include "graph/utils/tensor_utils.h"
@@ -1627,7 +1626,6 @@ Status GraphPrepare::PrepareOptimize() {
   try {
     (void)original_graph_passes.AddPass("PrepareOptimize::ShapeOperateOpRemovePass", new ShapeOperateOpRemovePass);
     (void)original_graph_passes.AddPass("PrepareOptimize::ReplaceTransShapePass", new ReplaceTransShapePass);
-    (void)original_graph_passes.AddPass("PrepareOptimize::MarkAgnosticPass", new MarkAgnosticPass);
   } catch (std::bad_alloc &e) {
     GELOGE(INTERNAL_ERROR, "Add pass failed, bad memory allocation occurs.");
     return INTERNAL_ERROR;