Revert "compiler cache patch"

This reverts commit fa18049597.

tinygrad/engine/schedule.py

@@ -2,7 +2,7 @@ import sys
 from collections import defaultdict, deque
 from dataclasses import dataclass
 from typing import Tuple, List, Dict, Optional, Set, DefaultDict
-from tinygrad.ops import LoadOps, ScheduleItem, BufferOps, LazyOp, ReduceOps, ConstBuffer, MemBuffer, UNSAFE_PAD_OPS, UnaryOps
+from tinygrad.ops import LoadOps, ScheduleItem, BufferOps, LazyOp, ReduceOps, ConstBuffer, MemBuffer, UNSAFE_PAD_OPS
 from tinygrad.features.graph import log_lazybuffer, realized_lazybuffer
 from tinygrad.helpers import GRAPH, DEBUG, GlobalCounters, prod, dedup, all_int, merge_dicts, getenv
 from tinygrad.shape.symbolic import Variable
@@ -82,7 +82,6 @@ def _schedule_group(outs:Tuple[LazyBuffer, ...], realizes:Set[LazyBuffer], reduc
   if outs[0].op in {LoadOps.CUSTOM, LoadOps.COPY, LoadOps.EMPTY}:
     ast, inputs = [LazyOp(outs[0].op, (), outs[0].arg)], list(outs[0].srcs)
   else:
-    if len(outs) > 1: outs = tuple(sorted(outs, key=lambda x: x.key))
     for i, out in enumerate(outs):
       output_st = ShapeTracker.from_shape(reduce_for_op[out].shape if out in reduce_for_op else out.shape)
       output_view = out.arg[0] if out.op is LoadOps.ASSIGN and out.arg else output_st

tinygrad/lazy.py

@@ -1,5 +1,5 @@
 from __future__ import annotations
-import math, hashlib, functools
+import math
 from typing import Union, Optional, Any, Tuple, List
 from tinygrad.dtype import dtypes, DType, ConstType, least_upper_dtype
 from tinygrad.helpers import prod, getenv, all_int, all_same
@@ -52,10 +52,6 @@ class LazyBuffer:
   @property
   def base(self) -> LazyBuffer: return self._base if self._base is not None else self
 
-  @functools.cached_property
-  def key(self) -> bytes: return hashlib.sha256(functools.reduce(lambda x,y: x+y, [s.base.key for s in self.srcs if s.base.realized is None],
-                                                                 str((self.op, self.arg, self.device)).encode())).digest()
-
   # same API as multi
   @property
   def lbs(self) -> List[LazyBuffer]: return [self]