ClangCodeModel: Remove inapplicable TODO item

It's not worth the extra effort to restrict the identifier <-> file name
check to data types: There is hardly any possibility for a completely
false positive, as local variables do not pass through this code path.

Change-Id: Ia92549c8c6723e520789a2ad820a2606620d4efe
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/clangcodemodel/clangdclient.cpp

@@ -1230,7 +1230,7 @@ void ClangdClient::Private::addSearchResultsForFile(ReferencesData &refData,
             if (fileInSession && file.baseName().compare(
                         refData.replacementData->oldSymbolName,
                         Qt::CaseInsensitive) == 0) {
-                refData.replacementData->fileRenameCandidates << file; // TODO: We want to do this only for types. Use SymbolInformation once we have it.
+                refData.replacementData->fileRenameCandidates << file;
             }
         }
         items << item;