diff --git a/components/esp_rom/esp32h2/ld/rev2/esp32h2.rom.newlib.ld b/components/esp_rom/esp32h2/ld/rev2/esp32h2.rom.newlib.ld
index d8ac6aabfc..1733b9a5dc 100644
--- a/components/esp_rom/esp32h2/ld/rev2/esp32h2.rom.newlib.ld
+++ b/components/esp_rom/esp32h2/ld/rev2/esp32h2.rom.newlib.ld
@@ -30,7 +30,6 @@ strncmp = 0x400004b4;
 strlen = 0x400004b8;
 strstr = 0x400004bc;
 bzero = 0x400004c0;
-_isatty_r = 0x400004c4;
 sbrk = 0x400004c8;
 isalnum = 0x400004cc;
 isalpha = 0x400004d0;
@@ -89,11 +88,8 @@ fflush = 0x400005a0;
 _fflush_r = 0x400005a4;
 _fwalk = 0x400005a8;
 _fwalk_reent = 0x400005ac;
-__smakebuf_r = 0x400005b0;
-__swhatbuf_r = 0x400005b4;
 __swbuf_r = 0x400005b8;
 __swbuf = 0x400005bc;
-__swsetup_r = 0x400005c0;
 _strtod_l = 0x400005c4;
 _strtod_r = 0x400005c8;
 strtod_l = 0x400005cc;