kbuild: Remove -DEXPORT_SYMTAB switch

rusty's module rewrite removed the reference to EXPORT_SYMTAB 
from linux/module.h, and it's not used anywhere else, either.

Makefile

@@ -256,10 +256,6 @@ ifdef include_config
 
 -include .config.cmd
 
-ifdef CONFIG_MODULES
-export EXPORT_FLAGS := -DEXPORT_SYMTAB
-endif
-
 ifndef CONFIG_FRAME_POINTER
 CFLAGS		+= -fomit-frame-pointer
 endif

scripts/Makefile.build

@@ -69,11 +69,6 @@ $(real-objs-m:.o=.lst): quiet_modtag := [M]
 
 $(obj-m)              : quiet_modtag := [M]
 
-$(export-objs)        : export_flags   := $(EXPORT_FLAGS)
-$(export-objs:.o=.i)  : export_flags   := $(EXPORT_FLAGS)
-$(export-objs:.o=.s)  : export_flags   := $(EXPORT_FLAGS)
-$(export-objs:.o=.lst): export_flags   := $(EXPORT_FLAGS)
-
 # Default for not multi-part modules
 modname = $(*F)
 

scripts/Makefile.lib

@@ -130,7 +130,7 @@ basename_flags = -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F)))
 modname_flags  = $(if $(filter 1,$(words $(modname))),-DKBUILD_MODNAME=$(subst $(comma),_,$(subst -,_,$(modname))))
 c_flags        = -Wp,-MD,$(depfile) $(CFLAGS) $(NOSTDINC_FLAGS) \
 	         $(modkern_cflags) $(EXTRA_CFLAGS) $(CFLAGS_$(*F).o) \
-	         $(basename_flags) $(modname_flags) $(export_flags) 
+	         $(basename_flags) $(modname_flags)
 a_flags        = -Wp,-MD,$(depfile) $(AFLAGS) $(NOSTDINC_FLAGS)\
 		 $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
 hostc_flags    = -Wp,-MD,$(depfile) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS)\