Removing LangChain and Rebuilding Executor (#1322)

* rebuilding executor

* removing langchain

* Making all tests good

* fixing types and adding ability for nor using system prompts

* improving types

* pleasing the types gods

* pleasing the types gods

* fixing parser, tools and executor

* making sure all tests pass

* final pass

* fixing type

* Updating Docs

* preparing to cut new version

src/crewai/cli/templates/crew/crew.py

@@ -10,8 +10,6 @@ from crewai.project import CrewBase, agent, crew, task
 @CrewBase
 class {{crew_name}}Crew():
 	"""{{crew_name}} crew"""
-	agents_config = 'config/agents.yaml'
-	tasks_config = 'config/tasks.yaml'
 
 	@agent
 	def researcher(self) -> Agent: