Revert "feat: Add CacheProvider API for external distributed caching (Comfy-Org#12056)" (Comfy-Org#12912)

This reverts commit af7b4a9.

Author: comfyanonymous

comfy_api/latest/__init__.py

@@ -25,7 +25,6 @@ def __init__(self):
         super().__init__()
         self.node_replacement = self.NodeReplacement()
         self.execution = self.Execution()
-        self.caching = self.Caching()
 
     class NodeReplacement(ProxiedSingleton):
         async def register(self, node_replace: io.NodeReplace) -> None:
@@ -85,36 +84,6 @@ async def set_progress(
                 image=to_display,
             )
 
-    class Caching(ProxiedSingleton):
-        """
-        External cache provider API for sharing cached node outputs
-        across ComfyUI instances.
-
-        Example::
-
-            from comfy_api.latest import Caching
-
-            class MyCacheProvider(Caching.CacheProvider):
-                async def on_lookup(self, context):
-                    ...  # check external storage
-
-                async def on_store(self, context, value):
-                    ...  # store to external storage
-
-            Caching.register_provider(MyCacheProvider())
-        """
-        from ._caching import CacheProvider, CacheContext, CacheValue
-
-        async def register_provider(self, provider: "ComfyAPI_latest.Caching.CacheProvider") -> None:
-            """Register an external cache provider. Providers are called in registration order."""
-            from comfy_execution.cache_provider import register_cache_provider
-            register_cache_provider(provider)
-
-        async def unregister_provider(self, provider: "ComfyAPI_latest.Caching.CacheProvider") -> None:
-            """Unregister a previously registered cache provider."""
-            from comfy_execution.cache_provider import unregister_cache_provider
-            unregister_cache_provider(provider)
-
 class ComfyExtension(ABC):
     async def on_load(self) -> None:
         """
@@ -147,9 +116,6 @@ class Types:
     VOXEL = VOXEL
     File3D = File3D
 
-
-Caching = ComfyAPI_latest.Caching
-
 ComfyAPI = ComfyAPI_latest
 
 # Create a synchronous version of the API
@@ -169,7 +135,6 @@ class Types:
     "Input",
     "InputImpl",
     "Types",
-    "Caching",
     "ComfyExtension",
     "io",
     "IO",