diff --git a/py/modbuiltins.c b/py/modbuiltins.c
index 8dbcec7e3f..fc7ec24c74 100644
--- a/py/modbuiltins.c
+++ b/py/modbuiltins.c
@@ -34,7 +34,6 @@
 #include "py/runtime.h"
 #include "py/builtin.h"
 #include "py/stream.h"
-#include "py/obj.h" /* For get_int */
 
 #include "supervisor/shared/translate.h"
 
@@ -234,41 +233,10 @@ MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_hex_obj, mp_builtin_hex);
 #define mp_hal_readline readline
 #endif
 
-#include "usb.h"
-
 STATIC mp_obj_t mp_builtin_input(size_t n_args, const mp_obj_t *args) {
-    if (n_args >= 1) {
+    if (n_args == 1) {
         mp_obj_print(args[0], PRINT_STR);
     }
-    if (n_args == 2)
-      {
-	if (!mp_obj_is_true(args[1]))
-	  { /* If they pass 0 or False, return immediately if there's no text available */
-	    if (!usb_bytes_available())
-	      {
-		return mp_const_none;
-	      }
-	  }
-	else if (MP_OBJ_IS_INT(args[1]))
-	  {
-	    /* Timeout has been sent... check for USB input for that # of millis */
-	    mp_uint_t target = mp_hal_ticks_ms() + mp_obj_get_int(args[1]);
-	    bool bytesAvaliable = false;
-	    
-	    while (mp_hal_ticks_ms() < target)
-	      {
-		if (usb_bytes_available())
-		  {
-		    bytesAvaliable = true;
-		    break;
-		  }
-	      }
-	    if (!bytesAvaliable)
-	      return mp_const_none;
-	  }
-      }
-
-    
     vstr_t line;
     vstr_init(&line, 16);
     int ret = mp_hal_readline(&line, "");
@@ -280,7 +248,7 @@ STATIC mp_obj_t mp_builtin_input(size_t n_args, const mp_obj_t *args) {
     }
     return mp_obj_new_str_from_vstr(&mp_type_str, &line);
 }
-MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_input_obj, 0, 2, mp_builtin_input);
+MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_input_obj, 0, 1, mp_builtin_input);
 
 #endif