commands: clean up unnecessary code

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

commands/build.go

@@ -393,7 +393,6 @@ func checkWarnedFlags(f *pflag.Flag) {
 		switch t {
 		case "flag-warn":
 			logrus.Warn(m[0])
-			break
 		}
 	}
 }

commands/util.go

@@ -290,9 +290,7 @@ func loadInfoData(ctx context.Context, d *dinfo) error {
 			return errors.Wrap(err, "listing workers")
 		}
 		for _, w := range workers {
-			for _, p := range w.Platforms {
-				d.platforms = append(d.platforms, p)
-			}
+			d.platforms = append(d.platforms, w.Platforms...)
 		}
 		d.platforms = platformutil.Dedupe(d.platforms)
 	}