!771 Revert "config: enable bcache for x86 by default"

Merge Pull Request from: @Tom_zc 
 
Enabling bcache causes interface changes and needs to be rolled back。 
 
Link:https://gitee.com/openeuler/kernel/pulls/771 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

arch/x86/configs/openeuler_defconfig

@@ -2522,10 +2522,7 @@ CONFIG_MD_RAID456=m
 # CONFIG_MD_MULTIPATH is not set
 CONFIG_MD_FAULTY=m
 # CONFIG_MD_CLUSTER is not set
-CONFIG_BCACHE=m
-# CONFIG_BCACHE_DEBUG is not set
-# CONFIG_BCACHE_CLOSURES_DEBUG is not set
-# CONFIG_BCACHE_ASYNC_REGISTRATION is not set
+# CONFIG_BCACHE is not set
 CONFIG_BLK_DEV_DM_BUILTIN=y
 CONFIG_BLK_DEV_DM=m
 CONFIG_DM_DEBUG=y
@@ -8032,7 +8029,7 @@ CONFIG_CRC32_SLICEBY8=y
 # CONFIG_CRC32_SLICEBY4 is not set
 # CONFIG_CRC32_SARWATE is not set
 # CONFIG_CRC32_BIT is not set
-CONFIG_CRC64=m
+# CONFIG_CRC64 is not set
 # CONFIG_CRC4 is not set
 CONFIG_CRC7=m
 CONFIG_LIBCRC32C=m