Remove unnecessary condition

In #10137 a fix was made that makes the condition

asgn_node.send_type? && !asgn_node.assignment_method?

unnecessary in AssignmentInCondition#skip_children?(). The spec example
'accepts = in a block followed by method call' that was added to regression
test this part of the code still passes if I remove the condition.

lib/rubocop/cop/lint/assignment_in_condition.rb

@@ -88,9 +88,7 @@ def conditional_assignment?(asgn_node)
         end
 
         def skip_children?(asgn_node)
-          (asgn_node.send_type? && !asgn_node.assignment_method?) ||
-            empty_condition?(asgn_node) ||
-            (safe_assignment_allowed? && safe_assignment?(asgn_node))
+          empty_condition?(asgn_node) || (safe_assignment_allowed? && safe_assignment?(asgn_node))
         end
 
         def traverse_node(node, &block)