Remove redundant "if present" from requireUserVerification description

index.bs

@@ -1423,8 +1423,8 @@ attributes.
 
     :   <dfn>requireUserVerification</dfn>
     ::  This member describes the [=[RP]=]'s requirements regarding [=user verification=] for this
-        {{CredentialsContainer/create()}} operation. If this member is [=present=], eligible authenticators are filtered to
-        satisfy this requirement as well as possible.
+        {{CredentialsContainer/create()}} operation. Eligible authenticators are filtered to only those capable of satisfying this
+        requirement.
 </div>
 
 
@@ -1500,8 +1500,8 @@ an assertion. Its {{PublicKeyCredentialRequestOptions/challenge}} member must be
 
     :   <dfn>requireUserVerification</dfn>
     ::  This member describes the [=[RP]=]'s requirements regarding [=user verification=] for this
-        {{CredentialsContainer/get()}} operation. If this member is [=present=], eligible authenticators are filtered to
-        satisfy this requirement as well as possible.
+        {{CredentialsContainer/get()}} operation. Eligible authenticators are filtered to only those capable of satisfying this
+        requirement.
 
     :   <dfn>extensions</dfn>
     ::  This optional member contains additional parameters requesting additional processing by the client and authenticator.