config: disentangle PREFER_APPLETS from SH_STANDALONE and SH_NOFORK

On user request.
I thought enabling/disabling them all together is more consistent.
Evidently, some people do want them to be separately selectable.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/Config.src b/shell/Config.src
index b31e62d..e4df359 100644
--- a/shell/Config.src
+++ b/shell/Config.src
@@ -88,7 +88,7 @@
 config FEATURE_SH_STANDALONE
 	bool "Standalone shell"
 	default n
-	depends on (HUSH || ASH) && FEATURE_PREFER_APPLETS
+	depends on (HUSH || ASH)
 	help
 	  This option causes busybox shells to use busybox applets
 	  in preference to executables in the PATH whenever possible. For
@@ -121,7 +121,7 @@
 config FEATURE_SH_NOFORK
 	bool "Run 'nofork' applets directly"
 	default n
-	depends on (HUSH || ASH) && FEATURE_PREFER_APPLETS
+	depends on (HUSH || ASH)
 	help
 	  This option causes busybox shells to not execute typical
 	  fork/exec/wait sequence, but call <applet>_main directly,