linter: fix strict_top_level_inference registry

Work towards #59867

Change-Id: I61e82e43252b24b63ef04f511cac3cbe70771308
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/403704
Commit-Queue: Samuel Rawlins <srawlins@google.com>
Commit-Queue: Phil Quitslund <pquitslund@google.com>
Auto-Submit: Samuel Rawlins <srawlins@google.com>
Reviewed-by: Phil Quitslund <pquitslund@google.com>

pkg/linter/lib/src/rules/strict_top_level_inference.dart

@@ -36,7 +36,6 @@ class StrictTopLevelInference extends LintRule {
     registry.addConstructorDeclaration(this, visitor);
     registry.addFunctionDeclaration(this, visitor);
     registry.addMethodDeclaration(this, visitor);
-    registry.addSimpleFormalParameter(this, visitor);
     registry.addVariableDeclarationList(this, visitor);
   }
 }