lib/crc: remove unnecessary prompt for CONFIG_CRC8

All modules that need CONFIG_CRC8 already select it, so there is no need
to bother users about the option.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250304230712.167600-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>

arch/s390/configs/debug_defconfig

@@ -815,7 +815,6 @@ CONFIG_SYSTEM_BLACKLIST_KEYRING=y
 CONFIG_CORDIC=m
 CONFIG_CRYPTO_LIB_CURVE25519=m
 CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
-CONFIG_CRC8=m
 CONFIG_RANDOM32_SELFTEST=y
 CONFIG_XZ_DEC_MICROLZMA=y
 CONFIG_DMA_CMA=y

arch/s390/configs/defconfig

@@ -803,7 +803,6 @@ CONFIG_CORDIC=m
 CONFIG_PRIME_NUMBERS=m
 CONFIG_CRYPTO_LIB_CURVE25519=m
 CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
-CONFIG_CRC8=m
 CONFIG_XZ_DEC_MICROLZMA=y
 CONFIG_DMA_CMA=y
 CONFIG_CMA_SIZE_MBYTES=0

lib/Kconfig

@@ -222,11 +222,7 @@ config LIBCRC32C
 	  purposes until the users are updated to select CRC32 directly.
 
 config CRC8
-	tristate "CRC8 function"
-	help
-	  This option provides CRC8 function. Drivers may select this
-	  when they need to do cyclic redundancy check according CRC8
-	  algorithm. Module will be called crc8.
+	tristate
 
 config CRC_OPTIMIZATIONS
 	bool "Enable optimized CRC implementations" if EXPERT