Update FILES.md

Author: daviddias

SPEC/FILES.md

@@ -86,8 +86,6 @@ Returns a Readable Stream of class Duplex, where objects can be written of the f
 - progress (function): a function that will be called with the byte length of chunks as a file is added to ipfs.
 - hashAlg || hash (string): multihash hashing algorithm to use
 
-If no `callback` is passed, a promise is returned.
-
 **Example:**
 
 ```JavaScript
@@ -136,8 +134,6 @@ Returns a Pull Stream, where objects can be written of the forms
 - progress (function): a function that will be called with the byte length of chunks as a file is added to ipfs.
 - hashAlg || hash (string): multihash hashing algorithm to use
 
-If no `callback` is passed, a promise is returned.
-
 **Example:**
 
 ```JavaScript