Remove floating comma from adafruit_feather_esp32s3_reversetft.json. (platformio#1421)

Author: gmemstr

boards/adafruit_feather_esp32s3_reversetft.json

@@ -11,7 +11,7 @@
       "-DARDUINO_USB_CDC_ON_BOOT=1",
       "-DARDUINO_RUNNING_CORE=1",
       "-DARDUINO_EVENT_RUNNING_CORE=1",
-      "-DBOARD_HAS_PSRAM",
+      "-DBOARD_HAS_PSRAM"
     ],
     "f_cpu": "240000000L",
     "f_flash": "80000000L",