net: ipa: kill definition of TRE_FLAGS_IEOB_FMASK

In "gsi_trans.c", the field mask TRE_FLAGS_IEOB_FMASK is defined but
never used.  Although there's no harm in defining this, remove it
for now and redefine it at some future date if it becomes needed.
This is warned about if "W=2" is added to the build command.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ipa/gsi_trans.c

@@ -81,7 +81,6 @@ struct gsi_tre {
 
 /* gsi_tre->flags mask values (in CPU byte order) */
 #define TRE_FLAGS_CHAIN_FMASK	GENMASK(0, 0)
-#define TRE_FLAGS_IEOB_FMASK	GENMASK(8, 8)
 #define TRE_FLAGS_IEOT_FMASK	GENMASK(9, 9)
 #define TRE_FLAGS_BEI_FMASK	GENMASK(10, 10)
 #define TRE_FLAGS_TYPE_FMASK	GENMASK(23, 16)