diff --git a/mlir/include/mlir/ExecutionEngine/Float16bits.h b/mlir/include/mlir/ExecutionEngine/Float16bits.h
--- a/mlir/include/mlir/ExecutionEngine/Float16bits.h
+++ b/mlir/include/mlir/ExecutionEngine/Float16bits.h
@@ -48,8 +48,5 @@
 // Outputs a bfloat value.
 MLIR_FLOAT16_EXPORT std::ostream &operator<<(std::ostream &os, const bf16 &d);
 
-extern "C" MLIR_FLOAT16_EXPORT void printF16(uint16_t bits);
-extern "C" MLIR_FLOAT16_EXPORT void printBF16(uint16_t bits);
-
 #undef MLIR_FLOAT16_EXPORT
 #endif // MLIR_EXECUTIONENGINE_FLOAT16BITS_H_