Remove unnecessary variable

Author: aycabta

lib/rdoc/parser/ruby.rb

@@ -1550,7 +1550,6 @@ def parse_method_or_yield_parameters(method = nil,
       end
       tk = get_tk
     end
-    @scanner.first_in_method_statement = true
 
     get_tkread_clean(/\s+/, ' ')
   end