Remove redundant parenthetical about tool calling in sessionless design section

Author: robertpiosik

README.md

@@ -23,7 +23,7 @@
 
 ## Sessionless design
 
-Unlike coding agents that accumulate tool outputs and chat history over long sessions, **CWC separates agentic context discovery (tool calling) from code editing**. Without [prompt](#prompts) complexity growing well past the task at hand, **models spend less time _thinking_, cutting latency and reducing quota usage**.
+Unlike coding agents that accumulate tool outputs and chat history over long sessions, **CWC separates agentic context discovery from code editing**. Without [prompt](#prompts) complexity growing well past the task at hand, **models spend less time _thinking_, cutting latency and reducing quota usage**.
 
 ## Send prompts with...