feat(espefuse): Clean up efuse code for ESP32H2

Author: KonstantinKondrashov

espefuse/efuse/esp32h2/fields.py

@@ -306,22 +306,9 @@ def convert(parent, efuse):
             "keypurpose": EfuseKeyPurposeField,
             "t_sensor": EfuseTempSensor,
             "adc_tp": EfuseAdcPointCalibration,
-            "wafer": EfuseWafer,
         }.get(efuse.class_type, EfuseField)(parent, efuse)
 
 
-class EfuseWafer(EfuseField):
-    def get(self, from_read=True):
-        hi_bits = self.parent["WAFER_VERSION_MINOR_HI"].get(from_read)
-        assert self.parent["WAFER_VERSION_MINOR_HI"].bit_len == 1
-        lo_bits = self.parent["WAFER_VERSION_MINOR_LO"].get(from_read)
-        assert self.parent["WAFER_VERSION_MINOR_LO"].bit_len == 3
-        return (hi_bits << 3) + lo_bits
-
-    def save(self, new_value):
-        raise esptool.FatalError("Burning %s is not supported" % self.name)
-
-
 class EfuseTempSensor(EfuseField):
     def get(self, from_read=True):
         value = self.get_bitstring(from_read)