ARM: 6876/1: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS

This config option isn't actually used anywhere and can be safely
removed. The last user was traps.c before commit 082f47a ([ARM]
always allow dump_stack() to produce a backtrace, 2007-07-05).

Reviewed-by: Jesper Juhl <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
Signed-off-by: Russell King <[e-mail]>

arch/arm/Kconfig.debug

···
 	      8 - SIGSEGV faults
 	     16 - SIGBUS faults
 
-config DEBUG_ERRORS
-	bool "Verbose kernel error messages"
-	depends on DEBUG_KERNEL
-	help
-	  This option controls verbose debugging information which can be
-	  printed when the kernel detects an internal error. This debugging
-	  information is useful to kernel hackers when tracking down problems,
-	  but mostly meaningless to other people. It's safe to say Y unless
-	  you are concerned with the code size or don't want to see these
-	  messages.
-
 config DEBUG_STACK_USAGE
 	bool "Enable stack utilization instrumentation"
 	depends on DEBUG_KERNEL