core[patch]: Remove non relevant todos (#26332)

Clean up TODO(0.3)

libs/core/langchain_core/language_models/base.py

@@ -113,10 +113,6 @@ class BaseLanguageModel(
     
     Caching is not currently supported for streaming methods of models.
     """
-    # Repr = False is consistent with pydantic 1 if verbose = False
-    # We can relax this for pydantic 2?
-    # TODO(0.3): Resolve repr for verbose
-    # Modified just to get unit tests to pass.
     verbose: bool = Field(default_factory=_get_verbosity, exclude=True, repr=False)
     """Whether to print out response text."""
     callbacks: Callbacks = Field(default=None, exclude=True)

libs/core/langchain_core/runnables/configurable.py

@@ -376,7 +376,6 @@ class RunnableConfigurableFields(DynamicRunnable[Input, Output]):
         Returns:
             List[ConfigurableFieldSpec]: The configuration specs.
         """
-        # TODO(0.3): This change removes field_info which isn't needed in pydantic 2
         config_specs = []
 
         for field_name, spec in self.fields.items():

libs/core/langchain_core/runnables/history.py

@@ -375,9 +375,6 @@ class RunnableWithMessageHistory(RunnableBindingBase):
     def get_input_schema(
         self, config: Optional[RunnableConfig] = None
     ) -> Type[BaseModel]:
-        # TODO(0.3): Verify that this change was correct
-        # Not enough tests and unclear on why the previous implementation was
-        # necessary.
         from langchain_core.messages import BaseMessage
 
         fields: Dict = {}