kbuild: remove EXPERT and !COMPILE_TEST guarding from TRIM_UNUSED_KSYMS

This reverts the following two commits:

  - a555bdd0 ("Kbuild: enable TRIM_UNUSED_KSYMS again, with some guarding")
  - 5cf0fd59 ("Kbuild: disable TRIM_UNUSED_KSYMS option")

Commit 5e9e95cc ("kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without
recursion") solved the build time issue.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

kernel/module/Kconfig

@@ -362,8 +362,7 @@ config MODPROBE_PATH
 	  userspace can still load modules explicitly).
 
 config TRIM_UNUSED_KSYMS
-	bool "Trim unused exported kernel symbols" if EXPERT
-	depends on !COMPILE_TEST
+	bool "Trim unused exported kernel symbols"
 	help
 	  The kernel and some modules make many symbols available for
 	  other modules to use via EXPORT_SYMBOL() and variants. Depending