[Fix] Remove the duplicate PrintIR pass in Relay (#5403)

Author: icemelon

include/tvm/relay/transform.h

@@ -323,15 +323,6 @@ TVM_DLL Pass CanonicalizeCast();
  */
 TVM_DLL Pass EtaExpand(bool expand_constructor, bool expand_global_var);
 
-/*!
- * \brief Print the IR for a module to help debugging.
- *
- * \param show_meta_data The flag to control if meta data needs to be printed.
- *
- * \return the pass.
- */
-TVM_DLL Pass PrintIR(bool show_meta_data = true);
-
 /*!
  * \brief Partition a Relay program into regions that can be executed on
  * different backends.