add config knob for react_strict_mode. default to True. also cleanup …

…unused code (#3389)

reflex/config.py

@@ -202,6 +202,9 @@ class Config:
     # Whether to enable or disable nextJS gzip compression.
     next_compression: bool = True
 
+    # Whether to use React strict mode in nextJS
+    react_strict_mode: bool = True
+
     # Additional frontend packages to install.
     frontend_packages: List[str] = []
 

reflex/constants/__init__.py

@@ -35,7 +35,6 @@
 )
 from .config import (
     ALEMBIC_CONFIG,
-    PRODUCTION_BACKEND_URL,
     Config,
     Expiration,
     GitIgnore,
@@ -99,7 +98,6 @@
     Ping,
     POLLING_MAX_HTTP_BUFFER_SIZE,
     PYTEST_CURRENT_TEST,
-    PRODUCTION_BACKEND_URL,
     Reflex,
     RELOAD_CONFIG,
     RequirementsTxt,

reflex/utils/prerequisites.py

@@ -332,19 +332,6 @@ def parse_redis_url() -> str | dict | None:
     return dict(host=redis_url, port=int(redis_port), db=0)
 
 
-def get_production_backend_url() -> str:
-    """Get the production backend URL.
-
-    Returns:
-        The production backend URL.
-    """
-    config = get_config()
-    return constants.PRODUCTION_BACKEND_URL.format(
-        username=config.username,
-        app_name=config.app_name,
-    )
-
-
 def validate_app_name(app_name: str | None = None) -> str:
     """Validate the app name.
 
@@ -625,7 +612,7 @@ def _update_next_config(
     next_config = {
         "basePath": config.frontend_path or "",
         "compress": config.next_compression,
-        "reactStrictMode": True,
+        "reactStrictMode": config.react_strict_mode,
         "trailingSlash": True,
     }
     if transpile_packages: