malta: remove unneeded symbols

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

target/linux/malta/config-4.4

@@ -139,8 +139,6 @@ CONFIG_HW_HAS_PCI=y
 CONFIG_I8253=y
 CONFIG_I8253_LOCK=y
 CONFIG_I8259=y
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
 CONFIG_INPUT=y
 # CONFIG_INPUT_MISC is not set
 CONFIG_INPUT_MOUSEDEV=y
@@ -258,7 +256,6 @@ CONFIG_SERIO=y
 CONFIG_SERIO_SERPORT=y
 CONFIG_SMP=y
 CONFIG_SMP_UP=y
-CONFIG_SOCK_DIAG=y
 CONFIG_SRCU=y
 # CONFIG_STAGING is not set
 # CONFIG_SUNXI_SRAM is not set