arch: arm64: remove CONFIG_ARM64_ENABLE_FRAME_POINTER

`CONFIG_ARM64_ENABLE_FRAME_POINTER` had been deprecated since zephyrproject-rtos#72646
for 2 releases and served not functional effect, it's now time to
say goodbye.

Signed-off-by: Yong Cong Sin <[email protected]>
Signed-off-by: Yong Cong Sin <[email protected]>

Author: ycsin

arch/arm64/core/Kconfig

@@ -143,17 +143,6 @@ config ARM64_SAFE_EXCEPTION_STACK
 	  used for user stack overflow checking, because kernel stack support
 	  the checking work.
 
-config ARM64_ENABLE_FRAME_POINTER
-	bool
-	depends on OVERRIDE_FRAME_POINTER_DEFAULT && !OMIT_FRAME_POINTER
-	depends on !FRAME_POINTER
-	select DEPRECATED
-	help
-	  Deprecated. Use CONFIG_FRAME_POINTER instead.
-	  Hidden option to simplify access to OVERRIDE_FRAME_POINTER_DEFAULT
-	  and OMIT_FRAME_POINTER. It is automatically enabled when the frame
-	  pointer unwinding is enabled.
-
 config ARM64_EXCEPTION_STACK_TRACE
 	bool
 	default y