Revert "scripts: west: commands: make use of shield.yml in west shields command"

This reverts commit 9dd10af.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

Author: kartben

scripts/west_commands/shields.py

@@ -49,8 +49,6 @@ def do_add_parser(self, parser_adder):
             The following arguments are available:
 
             - name: shield name
-            - full_name: shield full name (typically, its commercial name)
-            - vendor: shield vendor
             - dir: directory that contains the shield definition
             '''))
 
@@ -84,9 +82,4 @@ def do_run(self, args, _):
         for shield in list_shields.find_shields(args):
             if name_re is not None and not name_re.search(shield.name):
                 continue
-            self.inf(args.format.format(
-                name=shield.name,
-                dir=shield.dir,
-                vendor=shield.vendor if hasattr(shield, 'vendor') else '',
-                full_name=shield.full_name if hasattr(shield, 'full_name') else shield.name
-            ))
+            self.inf(args.format.format(name=shield.name, dir=shield.dir))