Remove "otherwise" language after throwing in algorithms. (#438)

Co-authored-by: Evan Stade <[email protected]>

Author: evanstade

index.bs

@@ -2015,15 +2015,15 @@ enum IDBRequestReadyState {
 The <dfn attribute for=IDBRequest>result</dfn> getter steps are:
 
 1. If [=/this=]'s [=request/done flag=] is false, then [=exception/throw=] an "{{InvalidStateError}}" {{DOMException}}.
-1. Otherwise, return [=/this=]'s [=request/result=], or undefined if the request resulted in an error.
+1. Return [=/this=]'s [=request/result=], or undefined if the request resulted in an error.
 
 </div>
 
 <div algorithm>
 The <dfn attribute for=IDBRequest>error</dfn> getter steps are:
 
 1. If [=/this=]'s [=request/done flag=] is false, then [=exception/throw=] an "{{InvalidStateError}}" {{DOMException}}.
-1. Otherwise, return [=/this=]'s [=request/error=], or null if no error occurred.
+1. Return [=/this=]'s [=request/error=], or null if no error occurred.
 
 </div>
 
@@ -2981,8 +2981,7 @@ To <dfn>add or put</dfn> with |handle|, |value|, |key|, and |no-overwrite flag|,
         1. If |store| does not have a [=key generator=], [=exception/throw=]
             a "{{DataError}}" {{DOMException}}.
 
-        1. Otherwise, if
-            [=check that a key could be injected into a value=] with
+        1. If [=check that a key could be injected into a value=] with
             |clone| and |store|'s [=object-store/key path=] return
             false, [=exception/throw=] a "{{DataError}}" {{DOMException}}.