Fix Wdocumentation unknown parameter warning

Author: RKSimon

clang/lib/Parse/ParseTemplate.cpp

@@ -1233,8 +1233,6 @@ bool Parser::ParseGreaterThanInTemplateList(SourceLocation LAngleLoc,
 /// token that forms the template-id. Otherwise, we will leave the
 /// last token in the stream (e.g., so that it can be replaced with an
 /// annotation token).
-///
-/// \param NameHint is not required, and merely affects code completion.
 bool Parser::ParseTemplateIdAfterTemplateName(bool ConsumeLastToken,
                                               SourceLocation &LAngleLoc,
                                               TemplateArgList &TemplateArgs,