diff --git a/esptool.py b/esptool.py
index 6936d5b94..3c664f25b 100755
--- a/esptool.py
+++ b/esptool.py
@@ -2946,21 +2946,6 @@ class ESP32P4ROM(ESP32ROM):
     UF2_FAMILY_ID = 0x3D308E94
 
     EFUSE_MAX_KEY = 5
-    KEY_PURPOSES: Dict[int, str] = {
-        0: "USER/EMPTY",
-        1: "ECDSA_KEY",
-        2: "XTS_AES_256_KEY_1",
-        3: "XTS_AES_256_KEY_2",
-        4: "XTS_AES_128_KEY",
-        5: "HMAC_DOWN_ALL",
-        6: "HMAC_DOWN_JTAG",
-        7: "HMAC_DOWN_DIGITAL_SIGNATURE",
-        8: "HMAC_UP",
-        9: "SECURE_BOOT_DIGEST0",
-        10: "SECURE_BOOT_DIGEST1",
-        11: "SECURE_BOOT_DIGEST2",
-        12: "KM_INIT_KEY",
-    }
 
     def get_pkg_version(self):
         num_word = 2