Remove double words

Thanks to Chern
https://stacks.math.columbia.edu/tag/0BSE#comment-6055

pione.tex

@@ -6658,7 +6658,7 @@ \section{Tame ramification}
 \item a dense open $U \subset X$,
 \item a finite \'etale morphism $f : Y \to U$
 \end{enumerate}
-such that for every for every prime divisor $Z \subset X$
+such that for every prime divisor $Z \subset X$
 with $Z \cap U = \emptyset$ the local ring $\mathcal{O}_{X, \xi}$
 of $X$ at the generic point $\xi$ of $Z$ is a discrete valuation ring.
 Setting $K_\xi$ equal to the fraction field of $\mathcal{O}_{X, \xi}$