Remove naive solution for #447

spec/ameba/rule/lint/useless_assign_spec.cr

@@ -402,11 +402,12 @@ module Ameba::Rule::Lint
           CRYSTAL
       end
 
-      it "doesn't report type declaration as a call argument" do
+      pending "doesn't report type declaration as a call argument" do
         expect_no_issues subject, <<-CRYSTAL
           foo Foo(T), foo : T
           foo Foo, foo : Nil
-          foo foo : String, bar : Int32?
+          foo foo : String
+          foo foo : String, bar : Int32?, baz : Bool
           CRYSTAL
       end
 

src/ameba/rule/lint/useless_assign.cr

@@ -43,22 +43,14 @@ module Ameba::Rule::Lint
 
       scope.variables.each do |var|
         next if var.ignored? || var.used_in_macro? || var.captured_by_block?
-
-        if scope.assigns_type_dec?(var.name)
-          next if exclude_type_declarations? || expressions_with_call?(node)
-        end
+        next if exclude_type_declarations? && scope.assigns_type_dec?(var.name)
 
         var.assignments.each do |assign|
           check_assignment(source, assign, var)
         end
       end
     end
 
-    private def expressions_with_call?(node)
-      node.is_a?(Crystal::Expressions) &&
-        node.expressions.first?.is_a?(Crystal::Call)
-    end
-
     private def check_assignment(source, assign, var)
       return if assign.referenced?