Remove tar.gz in list name.

boards/uniboard2c/images/images.txt

@@ -10,8 +10,8 @@ Image name                                      | Date       |Author| Usage
 ---------------------------------------------------------------------------please-keep-line-length-within-120-char------
 unb2c_test_heater-r6825a1822                    | 2021-12-10 | RW   | See, $UPE_GEAR/peripherals/util_heater.py.
 
-unb2c_test_1GbE_I-r7dbc0316d.tar.gz             | 2022-12-10 | EK   | See [1], $UPE_GEAR/peripherals/tc_unb2_test_eth.py
-unb2c_test_1GbE_II-rac961afe2.tar.gz            | 2022-12-20 | EK   | See [1], $UPE_GEAR/peripherals/tc_unb2_test_eth.py
+unb2c_test_1GbE_I-r7dbc0316d                    | 2022-12-10 | EK   | See [1], $UPE_GEAR/peripherals/tc_unb2_test_eth.py
+unb2c_test_1GbE_II-rac961afe2                   | 2022-12-20 | EK   | See [1], $UPE_GEAR/peripherals/tc_unb2_test_eth.py
 
 
 References: