remove unused function is_arg_Proj()

include/libfirm/irnode.h

@@ -410,13 +410,6 @@ FIRM_API void remove_Sync_n(ir_node *n, int i);
 
 /** @} */
 
-/**
- * Returns non-zero if a node is a routine parameter.
- *
- * @param node  the Proj node to test
- */
-FIRM_API int is_arg_Proj(const ir_node *node);
-
 /** @addtogroup ASM
  * @{
  */

ir/ir/irnode.c

@@ -736,11 +736,6 @@ void add_Sync_pred(ir_node *node, ir_node *pred)
 	add_irn_n(node, pred);
 }
 
-int (is_arg_Proj)(const ir_node *node)
-{
-	return is_arg_Proj_(node);
-}
-
 int is_x_except_Proj(const ir_node *node)
 {
 	if (!is_Proj(node))

ir/ir/irnode_t.h

@@ -78,7 +78,6 @@
 #define set_Phi_next(node, phi)               set_Phi_next_(node, phi)
 #define get_Phi_next(node)                    get_Phi_next_(node)
 
-#define is_arg_Proj(node)                     is_arg_Proj_(node)
 #define ir_switch_table_get_n_entries(table)  ir_switch_table_get_n_entries_(table)
 
 /**
@@ -484,17 +483,6 @@ static inline void set_Block_mark_(ir_node *block, unsigned mark)
 	block->attr.block.marked = mark;
 }
 
-/** Returns non-zero if a node is a routine parameter. */
-static inline int is_arg_Proj_(const ir_node *node)
-{
-	if (! is_Proj(node))
-		return 0;
-	node = get_Proj_pred(node);
-	if (! is_Proj(node))
-		return 0;
-	return pn_Start_T_args == get_Proj_num(node) && is_Start(get_Proj_pred(node));
-}
-
 static inline size_t ir_switch_table_get_n_entries_(const ir_switch_table *table)
 {
 	return table->n_entries;