USE_USB removed here

Author: mkellner

tools/testmc/manifest_common.json

@@ -128,7 +128,6 @@
 		"esp32/moddable_six": {
 			"build": {
 				"ESP32_SUBCLASS": "esp32s3",
-				"USE_USB": "2",
 				"SDKCONFIGPATH": "$(MODDABLE)/build/devices/esp32/targets/moddable_six/sdkconfig"
 			},
 			"include": [