imx6: tqma6: rely on default setting for tftp and nfs

Playing with USB-to-Ethernet dongles it turns out,
that these will not work with special settings

Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
diff --git a/include/configs/tqma6.h b/include/configs/tqma6.h
index ceb4626..dce9c25 100644
--- a/include/configs/tqma6.h
+++ b/include/configs/tqma6.h
@@ -93,10 +93,6 @@
 #define CONFIG_MII
 
 #define CONFIG_ARP_TIMEOUT		200UL
-/* Network config - Allow larger/faster download for TFTP/NFS */
-#define CONFIG_IP_DEFRAG
-#define CONFIG_TFTP_BLOCKSIZE	4096
-#define CONFIG_NFS_READ_SIZE	4096
 
 /* Command definition */
 #define CONFIG_CMD_BMODE