Remove L6470 test for LPC176x

buildroot/share/tests/LPC1768_tests

@@ -70,7 +70,6 @@ opt_disable Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN
 opt_set X_DRIVER_TYPE TMC2130
 opt_set Y_DRIVER_TYPE TMC2130
 opt_set Z_DRIVER_TYPE TMC2130
-opt_set E0_DRIVER_TYPE L6470
 opt_enable TMC_USE_SW_SPI MONITOR_DRIVER_STATUS STEALTHCHOP HYBRID_THRESHOLD TMC_DEBUG \
            SENSORLESS_PROBING X_STALL_SENSITIVITY Y_STALL_SENSITIVITY Z_STALL_SENSITIVITY
 exec_test $1 $2 "Delta Config (generic) + BOARD_COHESION3D_REMIX + UBL + EEPROM_SETTINGS + SENSORLESS_PROBING"