clarify copy args

Author: zoecarver

include/ttlang/Dialect/TTL/IR/TTLOps.td

@@ -116,9 +116,8 @@ def TTL_CopyOp : TTL_Op<"copy", [MemoryEffects<[MemRead, MemWrite]>]> {
     corresponding `ttl.wait` has completed.
 
     Exactly one operand must be a circular buffer (`!ttl.cb`). The other operand
-    must be either:
-    - A `!ttl.tensor_slice` (a view into a tensor at specific tile indices)
-    - A ranked tensor with TTNN layout encoding (transfers all tiles via loop)
+    must be a ranked tensor (the result of a tensor slice) with TTNN layout
+    encoding (transfers all tiles via loop).
 
     TODO(ttl): Add an optional TRID attribute (range 0..15) when TRID-specific
     ttkernel noc ops land in tt-mlir. Issue: #87.