Revert "Initial orjson support (#72754)" (#72789)

This was causing the wheels to fail to build. We need
to workout why when we don't have release pressure

This reverts commit d9d22a9556.

homeassistant/helpers/json.py

@@ -1,10 +1,7 @@
 """Helpers to help with encoding Home Assistant objects in JSON."""
 import datetime
 import json
-from pathlib import Path
-from typing import Any, Final
-
-import orjson
+from typing import Any
 
 
 class JSONEncoder(json.JSONEncoder):
@@ -25,20 +22,6 @@ class JSONEncoder(json.JSONEncoder):
         return json.JSONEncoder.default(self, o)
 
 
-def json_encoder_default(obj: Any) -> Any:
-    """Convert Home Assistant objects.
-
-    Hand other objects to the original method.
-    """
-    if isinstance(obj, set):
-        return list(obj)
-    if hasattr(obj, "as_dict"):
-        return obj.as_dict()
-    if isinstance(obj, Path):
-        return obj.as_posix()
-    raise TypeError
-
-
 class ExtendedJSONEncoder(JSONEncoder):
     """JSONEncoder that supports Home Assistant objects and falls back to repr(o)."""
 
@@ -57,31 +40,3 @@ class ExtendedJSONEncoder(JSONEncoder):
             return super().default(o)
         except TypeError:
             return {"__type": str(type(o)), "repr": repr(o)}
-
-
-def json_bytes(data: Any) -> bytes:
-    """Dump json bytes."""
-    return orjson.dumps(
-        data, option=orjson.OPT_NON_STR_KEYS, default=json_encoder_default
-    )
-
-
-def json_dumps(data: Any) -> str:
-    """Dump json string.
-
-    orjson supports serializing dataclasses natively which
-    eliminates the need to implement as_dict in many places
-    when the data is already in a dataclass. This works
-    well as long as all the data in the dataclass can also
-    be serialized.
-
-    If it turns out to be a problem we can disable this
-    with option |= orjson.OPT_PASSTHROUGH_DATACLASS and it
-    will fallback to as_dict
-    """
-    return orjson.dumps(
-        data, option=orjson.OPT_NON_STR_KEYS, default=json_encoder_default
-    ).decode("utf-8")
-
-
-JSON_DUMP: Final = json_dumps