kernel: remove non-existent config symbols

The crashlog patch as not ported to kernel 5.4.

Fixes: 4e0c54bc5bc8 ("kernel: add support for kernel 5.4")
Signed-off-by: Jianhui Zhao <[email protected]>

config/Config-kernel.in

@@ -24,11 +24,6 @@ config KERNEL_PRINTK
 	bool "Enable support for printk"
 	default y
 
-config KERNEL_CRASHLOG
-	bool "Crash logging"
-	depends on !(arm || powerpc || sparc || TARGET_uml || i386 || x86_64)
-	default y
-
 config KERNEL_SWAP
 	bool "Support for paging of anonymous memory (swap)"
 	default y if !SMALL_FLASH

target/linux/generic/config-5.10

@@ -992,7 +992,6 @@ CONFIG_CPU_SW_DOMAIN_PAN=y
 # CONFIG_CRAMFS is not set
 CONFIG_CRAMFS_BLOCKDEV=y
 # CONFIG_CRAMFS_MTD is not set
-CONFIG_CRASHLOG=y
 # CONFIG_CRASH_DUMP is not set
 # CONFIG_CRC16 is not set
 CONFIG_CRC32=y

target/linux/generic/config-5.4

@@ -935,7 +935,6 @@ CONFIG_CPU_SW_DOMAIN_PAN=y
 # CONFIG_CRAMFS is not set
 CONFIG_CRAMFS_BLOCKDEV=y
 # CONFIG_CRAMFS_MTD is not set
-CONFIG_CRASHLOG=y
 # CONFIG_CRASH_DUMP is not set
 # CONFIG_CRC16 is not set
 CONFIG_CRC32=y