fix(heltec): Remove extra libs

Author: P-R-O-C-H-Y

Diff for: boards.txt

@@ -20733,7 +20733,6 @@ heltec_wireless_tracker.build.event_core=
 heltec_wireless_tracker.build.psram_type=qspi
 heltec_wireless_tracker.build.memory_type={build.boot}_{build.psram_type}
 heltec_wireless_tracker.build.defines=-D{build.band} {build.psram_val} -DLoRaWAN_DEBUG_LEVEL={build.LoRaWanDebugLevel} -DACTIVE_REGION=LORAMAC_{build.band} -DLORAWAN_PREAMBLE_LENGTH={build.LORAWAN_PREAMBLE_LENGTH} -DLORAWAN_DEVEUI_AUTO={build.LORAWAN_DEVEUI_AUTO} -D{build.board}
-heltec_wireless_tracker.build.extra_libs=-lheltec_{build.cdc_on_boot}
 
 heltec_wireless_tracker.menu.PSRAM.disabled=Disabled
 heltec_wireless_tracker.menu.PSRAM.disabled.build.psram_val=