tcp_transport: Remove the ignore warning because we had idf/esp-idf!3359

components/mqtt/component.mk

@@ -2,7 +2,3 @@ COMPONENT_SUBMODULES += esp-mqtt
 COMPONENT_ADD_INCLUDEDIRS := esp-mqtt/include
 COMPONENT_SRCDIRS :=  esp-mqtt esp-mqtt/lib
 COMPONENT_PRIV_INCLUDEDIRS := esp-mqtt/lib/include
-
-ifeq ($(GCC_NOT_5_2_0), 1)
-esp-mqtt/lib/transport_ws.o: CFLAGS += -Wno-format-overflow
-endif