[CLN] Remove QuotaProvider (#3061)

## Description of changes
Improvements & Bug fixes
- Remove the `QuotaProvider` abstract class as it is an implementation
choice specific to `QuotaEnforcer` and does not need an exposed hook.

## Test plan
*How are these changes tested?*

- [ ] Tests pass locally with `pytest` for python, `yarn test` for js,
`cargo test` for rust

## Documentation Changes
*Are all docstrings for user-facing APIs updated if required? Do we need
to make documentation changes in the [docs
repository](https://github.com/chroma-core/docs)?*

chromadb/config.py

@@ -80,7 +80,6 @@
     "chromadb.execution.executor.abstract.Executor": "chroma_executor_impl",
     "chromadb.ingest.Consumer": "chroma_consumer_impl",
     "chromadb.ingest.Producer": "chroma_producer_impl",
-    "chromadb.quota.QuotaProvider": "chroma_quota_provider_impl",
     "chromadb.quota.QuotaEnforcer": "chroma_quota_enforcer_impl",
     "chromadb.rate_limit.RateLimitEnforcer": "chroma_rate_limit_enforcer_impl",
     "chromadb.segment.SegmentManager": "chroma_segment_manager_impl",

chromadb/quota/__init__.py

@@ -1,18 +1,6 @@
 from abc import abstractmethod
-from typing import Callable, TypeVar, Any
 from chromadb.config import Component, System
 
-T = TypeVar("T", bound=Callable[..., Any])
-
-
-class QuotaProvider(Component):
-    """
-    Retrieves quotas for resources within a system.
-    """
-
-    def __init__(self, system: System) -> None:
-        super().__init__(system)
-
 
 class QuotaEnforcer(Component):
     """