[syncd]: Comment out unused docker-ptf-brcm.mk

Author: Shuotian Cheng

platform/broadcom/rules.mk

@@ -15,7 +15,7 @@ include $(PLATFORM_PATH)/raw-image.mk
 include $(PLATFORM_PATH)/one-aboot.mk
 include $(PLATFORM_PATH)/libsaithrift-dev.mk
 include $(PLATFORM_PATH)/python-saithrift.mk
-include $(PLATFORM_PATH)/docker-ptf-brcm.mk
+#include $(PLATFORM_PATH)/docker-ptf-brcm.mk
 
 BCMCMD = bcmcmd
 $(BCMCMD)_URL = "https://sonicstorage.blob.core.windows.net/packages/20170518/bcmcmd?sv=2015-04-05&sr=b&sig=OCW4mfmbQ6D0BH8nllpAWrS8XL9uczrw32w3XgL4jws%3D&se=2030-03-31T23%3A06%3A15Z&sp=r"