Revert "feat: add api_token parameter support for legacy compatibility"

This reverts commit 8c05e64.

Author: zeke

src/replicate/_client.py

@@ -102,7 +102,6 @@ def __init__(
         self,
         *,
         bearer_token: str | None = None,
-        api_token: str | None = None,  # Legacy compatibility parameter
         base_url: str | httpx.URL | None = None,
         timeout: Union[float, Timeout, None, NotGiven] = NOT_GIVEN,
         max_retries: int = DEFAULT_MAX_RETRIES,
@@ -125,17 +124,7 @@ def __init__(
         """Construct a new synchronous Replicate client instance.
 
         This automatically infers the `bearer_token` argument from the `REPLICATE_API_TOKEN` environment variable if it is not provided.
-
-        For legacy compatibility, you can also pass `api_token` instead of `bearer_token`.
         """
-        # Handle legacy api_token parameter
-        if api_token is not None and bearer_token is not None:
-            raise ReplicateError(
-                "Cannot specify both 'bearer_token' and 'api_token'. Please use 'bearer_token' (recommended) or 'api_token' for legacy compatibility."
-            )
-        if api_token is not None:
-            bearer_token = api_token
-
         if bearer_token is None:
             bearer_token = _get_api_token_from_environment()
         if bearer_token is None:
@@ -488,7 +477,6 @@ def __init__(
         self,
         *,
         bearer_token: str | None = None,
-        api_token: str | None = None,  # Legacy compatibility parameter
         base_url: str | httpx.URL | None = None,
         timeout: Union[float, Timeout, None, NotGiven] = NOT_GIVEN,
         max_retries: int = DEFAULT_MAX_RETRIES,
@@ -511,17 +499,7 @@ def __init__(
         """Construct a new async AsyncReplicate client instance.
 
         This automatically infers the `bearer_token` argument from the `REPLICATE_API_TOKEN` environment variable if it is not provided.
-
-        For legacy compatibility, you can also pass `api_token` instead of `bearer_token`.
         """
-        # Handle legacy api_token parameter
-        if api_token is not None and bearer_token is not None:
-            raise ReplicateError(
-                "Cannot specify both 'bearer_token' and 'api_token'. Please use 'bearer_token' (recommended) or 'api_token' for legacy compatibility."
-            )
-        if api_token is not None:
-            bearer_token = api_token
-
         if bearer_token is None:
             bearer_token = _get_api_token_from_environment()
         if bearer_token is None: