[Sema] Delete FIXME that has been fixed. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@265341 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaExpr.cpp

@@ -5089,8 +5089,6 @@ Sema::ActOnCallExpr(Scope *S, Expr *Fn, SourceLocation LParenLoc,
 
     // Determine whether this is a dependent call inside a C++ template,
     // in which case we won't do any semantic analysis now.
-    // FIXME: Will need to cache the results of name lookup (including ADL) in
-    // Fn.
     bool Dependent = false;
     if (Fn->isTypeDependent())
       Dependent = true;