Merge pull request modelcontextprotocol#339 from koic/remove_useless_condition_in_examples

Remove useless condition in example

Author: koic

examples/http_client.rb

@@ -137,8 +137,7 @@ def close_session
   end
 end
 
-# Main script
-if __FILE__ == $PROGRAM_NAME
+def main
   puts <<~MESSAGE
     MCP HTTP Client Example
     Make sure the HTTP server is running (ruby examples/http_server.rb)
@@ -182,3 +181,5 @@ def close_session
     client.close_session
   end
 end
+
+main

examples/streamable_http_client.rb

@@ -176,4 +176,4 @@ def main
   end
 end
 
-main if __FILE__ == $PROGRAM_NAME
+main