asm-generic/export.h: remove unneeded __kcrctab_* symbols

EXPORT_SYMBOL from assembly code produces an unused symbol __kcrctab_*.

kcrctab is used as a section name (prefixed with three underscores),
but never used as a symbol.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

include/asm-generic/export.h

@@ -43,7 +43,6 @@ __kstrtab_\name:
 #ifdef CONFIG_MODVERSIONS
 	.section ___kcrctab\sec+\name,"a"
 	.balign KCRC_ALIGN
-__kcrctab_\name:
 #if defined(CONFIG_MODULE_REL_CRCS)
 	.long __crc_\name - .
 #else