No real NOAO error model, remove mention

Author: brian_thomas

acfits.tex

@@ -673,7 +673,7 @@ \subsubsection{Scientific Errors}
 and target that subset as a first, shared model. Earlier efforts which
 might inform and help this work include local data models at sites
 such as NOAO, CADC \citep{2012ASPC..461..339D} and STScI,
-{\color{red} (Do we have references for NOAO and STScI error models?)}
+{\color{red} (Do we have reference for STScI error model?)}
 the error
 models implemented in other data formats like NDF
 \citep[although see for example][]{1991STARB...8...19M}, and software