kconfig_lint: Drop overly restrictive rule about choice configs

This rule was creating trouble:
* A symbol may only be declared inside or outside a choice.

The linter treats every occurence of a `config` entry as a symbol
declaration, even when it's just setting a default or adding selects.
This is not easy to fix as the symbol objects are not created first
and then added to the $symbols array when we know what kind of decla-
ration we have, but are created incrementally inside this global
list.

Change-Id: I48a17f6403470251be6b6d44bb82a8bdcbefe9f6
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56410
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/util/lint/kconfig_lint b/util/lint/kconfig_lint
index 7f26ef2..76dd787 100755
--- a/util/lint/kconfig_lint
+++ b/util/lint/kconfig_lint
@@ -814,16 +814,7 @@
     }
     else {
         $symbols{$symbol}{count}++;
-
-        if ( $inside_choice && !$symbols{$symbol}{choice} ) {
-            show_error( "$symbol entry at $filename:$line_no has already been created inside a choice block "
-                  . "at $symbols{$symbol}{0}{file}:$symbols{$symbol}{0}{line_no}." );
-        }
-        elsif ( !$inside_choice && $symbols{$symbol}{choice} ) {
-            show_error( "$symbol entry at $filename:$line_no has already been created outside a choice block "
-                  . "at $symbols{$symbol}{0}{file}:$symbols{$symbol}{0}{line_no}." );
-        }
-        elsif ( $inside_choice && $symbols{$symbol}{choice} ) {
+        if ( $inside_choice && $symbols{$symbol}{choice} ) {
             show_error( "$symbol entry at $filename:$line_no has already been created inside another choice block "
                   . "at $symbols{$symbol}{0}{file}:$symbols{$symbol}{0}{line_no}." );
         }