oxnas: remove unneeded _DIAG symbols

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>

target/linux/oxnas/config-4.4

@@ -192,9 +192,6 @@ CONFIG_I2C=y
 CONFIG_I2C_ALGOBIT=y
 CONFIG_I2C_BOARDINFO=y
 CONFIG_ICPLUS_PHY=y
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-CONFIG_INET_UDP_DIAG=y
 CONFIG_INPUT=y
 # CONFIG_INPUT_MISC is not set
 CONFIG_IOMMU_API=y
@@ -286,7 +283,6 @@ CONFIG_OF_PCI_IRQ=y
 CONFIG_OF_RESERVED_MEM=y
 CONFIG_OLD_SIGACTION=y
 CONFIG_OLD_SIGSUSPEND3=y
-CONFIG_PACKET_DIAG=y
 CONFIG_PAGE_OFFSET=0xC0000000
 CONFIG_PCI=y
 CONFIG_PCIEAER=y
@@ -346,7 +342,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_SG_SPLIT is not set
 CONFIG_SMP=y
 CONFIG_SMP_ON_UP=y
-CONFIG_SOCK_DIAG=y
 CONFIG_SRCU=y
 CONFIG_STMMAC_ETH=y
 CONFIG_STMMAC_PLATFORM=y