tinyconfig: remove unnecessary 'is not set' for choice blocks

This reverts the following commits:

 - 236dec05 ("kconfig: tinyconfig: provide whole choice blocks to
   avoid warnings")

 - b0f26972 ("x86/config: Fix warning for 'make ARCH=x86_64
   tinyconfig'")

Since commit f79dc03f ("kconfig: refactor choice value calculation"),
it is no longer necessary to disable the remaining options in choice
blocks.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/configs/tiny.config

 CONFIG_NOHIGHMEM=y
-# CONFIG_HIGHMEM4G is not set
-# CONFIG_HIGHMEM64G is not set
-# CONFIG_UNWINDER_ORC is not set
 CONFIG_UNWINDER_GUESS=y
-# CONFIG_UNWINDER_FRAME_POINTER is not set

kernel/configs/tiny.config

-# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-# CONFIG_KERNEL_GZIP is not set
-# CONFIG_KERNEL_BZIP2 is not set
-# CONFIG_KERNEL_LZMA is not set
 CONFIG_KERNEL_XZ=y
-# CONFIG_KERNEL_LZO is not set
-# CONFIG_KERNEL_LZ4 is not set
 CONFIG_SLUB=y
 CONFIG_SLUB_TINY=y